Sci-fi short story about a young brother and sister with a crystal hologram room which parents want to get rid of

I am looking for a sci-fi short story that was assigned to my class in middle school (around 2005), but was presumably written in the latter half of the 20th century. I am not sure if it was completely age-appropriate.  The plot revolves around a brother (max age 12) and his sister (max age 8), who have a playroom walled with crystals that can recreate any environment they imagine. The room is very good at what it does - think Proust's strong emotional reaction to smells, but with all senses. The parents of the children are having second thoughts on having the crystal room in their house, especially as it seems to be the only place the children want to play, and are planning to get rid of it. The children are very against this idea.  Although the parents have had a bad feeling about the room and its effect on their children's development for a while, when both they and the children enter the room, it is implied that the little sister changes the the environment to a serene scene of the Swiss Alps, and the parents know this, with both the calm emanating from the room and this fact placating their fears. However, the next day, the father's wallet goes missing somewhere in the house, and when his search leads him the the playroom, he finds himself in a oppressively hot savanna, with groups of hungry lions in the near distance. It is implied that this is a trap that the children set to kill their parents. Whether the lions are tangible or holograms are uncertain, as is the mode of murder.  The last scene is of an adult neighbor or family friend visiting the house, and the children are happily having a tea party outside. They are asked where their parents are, but I cannot remember their reply.


As far as I understand it, a steady/stationary/constant current is defined to have $dJ/dt=0$ (i.e., no explicit time dependence). So I would say that sinusoids cannot produce steady currents, yet google tells me that there are such things as sinusoidal steady currents. How is that possible given that such sinusoidal currents have an explicit time dependence ($sin(\omega t$))?   When I imagine a steady current, the easiest picture is of a line current that has one $J=$constant (no time dependence), which produces a constant magnetic field loop at some radius away from the line/wire. How can a time-varying sinusoid also produce a constant magnetic field? Are 'steady sinusoidal currents' instead referring to a spatially-varying sinusoid (like a constant current density, but going around in a circular loop, i.e., a magnetic dipole)?


Stuck on formal proofs. Not sure how to continue

I'm stuck on what how to continue. I know I'm missing a few steps but this is what I have so far. Thank you in advance!   ¬Cube(b) → Small(b) Small(c) → (Small(d) ∨ Small(e))  Small(d) → ¬Small(c) Cube(b) → ¬Small(e)   Small(c)   ¬Small(b)   ¬Cube(b) Small(b) (→ Elim 1,7) ⊥ (⊥intro 6, 8)    10.Cube(b) (¬Intro 7-9)   ¬Small(e) (→ Elim 4,10)     Goal: Small(c) → Small(b)


I have the following code.  \documentclass[a4paper,twoside,12pt]{article}  \usepackage[T1]{fontenc} \usepackage[utf8x]{inputenc} \usepackage[english]{babel} \usepackage{pgfplotstable}  \definecolor{color1}{rgb}{0.98, 0.81, 0.69} \definecolor{color2}{rgb}{0.55, 0.71, 0.0} \definecolor{color3}{rgb}{1.0, 0.6, 0.4} \definecolor{color4}{rgb}{0.29, 0.59, 0.82}  \pgfplotscreateplotcyclelist{mycolor}{ {fill=color1!80, draw=color1}, {fill=color2!80, draw=color2}, {fill=color3!80, draw=color3}, {fill=color4!80, draw=color4}, }  \begin{filecontents*}{coefficienti.dat} T       K       Q       Kf      n 400     0.0463  32.9        5.78        0.321 500     0.124   24.8        6.30        0.275 600     0.115   24.6        6.30        0.261 700     1.64        24.4        11.9        0.151 \end{filecontents*}  \begin{document}  \begin{tikzpicture}     \begin{axis} [         ymin=0,         ybar=0, bar width=20, bar shift=0,         xtick={1,2,3,4},         xticklabels from table={coefficienti.dat}{T},         ymajorgrids=true,         cycle list name=mycolor,         nodes near coords,         every node near coord/.append style = {             /pgf/number format/.cd,             fixed,             fixed zerofill,             precision=3         }]         \addplot table [x=T,y=K] {coefficienti.dat};     \end{axis} \end{tikzpicture}  \end{document}   The result is the following graph (don't care about the color, I know it's horrible).     I would like that each bar has a different color from the list mycolor. How can I do? In the x axis I would like to put the values of the column T of the table coefficienti.dat. How can I do?


How and when does the tracking of shared links work?

My two main questions:  Are all URLs that include your User Id tracked?  Can the visitors who use the tracked URLs have Stack Exchange accounts?   Specifically: Recently the ability to earn badges for sharing links to posts on Stack Exchange sites . I'd like to know when and how this tracking works. It's clear that if you go to a question, and make use of the link button, you will get a URL with your User ID that will be tracked if a visitor uses it to get to SO. For example, let's use  as an example. It's regular URL is:  https://stackoverflow.com/questions/309300/defend-php-convince-me-it-isnt-horrible  If you go to that page and use "save link as" in the link section of the question you will be given a tracked url with your User ID:  https://stackoverflow.com/q/309300/[USER ID]  My question is, are there other URLs that would be tracked? All of the following URLs take you to the Question / Answer, but are they tracked? For example what if I just tack my User ID onto the long url?  https://stackoverflow.com/questions/309300/defend-php-convince-me-it-isnt-horrible/[USER ID]  What if I add my User ID to an answer URL?  https://stackoverflow.com/questions/309300/defend-php-convince-me-it-isnt-horrible/309622#309622/[USER ID]  or even  https://stackoverflow.com/q/309622/[USER ID]   Is there a way to know that a URL is being tracked? Is there some sort of format to follow? Are the only tracked URLs the ones provided in the Question links? Finally, does this sentence from the blog post mean that visitors cannot have an account?  Also, the tracked IPs must originate from outside our existing network.


Medical term for the parameters that can be measured in human body

How can someone express in a medical term the biological and medical parameters that someone can measure in a human body?  For example I mention just a few like the blood pressure, the glucose level, the heart rate, the cortisol level etc  OP's comment on the suggestion vital signs:  Vital signs don't include chemical measurements. Usually the vital signs consist of a standard procedure. I would like to know if there is a word or a way to express every measurement such as chemical analysis of blood or analysis for infections.


I know there are hundreds of similar questions out there, If my answer is out there, I haven't been able to work it out yet...  I have some PHP, I'm using PDO to update a table in mySQL  when I do I get an uncaught PDO exception.     Fatal error:  Uncaught exception 'PDOException' with message 'SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'mouse, CatID=1 WHERE ID=1' at line 1' in C:\xampp\htdocs\classes\catalogue.php:93   Stack trace:   The method looks like this:  function editItem($item){     $d = JSON_decode($item, true);     var_dump($d);     $name = $d['Name'];     $price = $d['Price'];     $desc = $d['Desc'];     $catID = $d['CatID'];     $ID = $d['ID'];      $conn = self::connect();     $sql = "UPDATE catalogue SET Name=$name, Price=$price, `Desc`=$desc, CatID=$catID WHERE ID=$ID";      // Prepare statement     $stmt = $conn->prepare($sql);      // execute the query     $stmt->execute();  }   the var_dump looks like this:  array(7) {   ["ID"]=>   string(1) "1"   ["Name"]=>   string(5) "Mouse"   ["Price"]=>   int(20)   ["Desc"]=>   string(7) "A mouse"   ["CatID"]=>   string(1) "1"   ["$$hashKey"]=>   string(9) "object:75"   ["edit"]=>   bool(true) }   Clearly I've missed something obvious, I just can't work it out.... Can anyone see where I wen't wrong?  thanks


Internet addicted, need software to control my usage and block access

I found I have problem to be a little addictive with surfing on internet.  I am trying to find a free ware, (or software), that can help me for exemple to be just 2 hours per day on internet.  Like it is counting the minutes and than stop working. not just 2 hours in one time, but in whole day....   maybe that it has different modes (2hours together, in whole day, 2hours + little reserve time)  but I need something that really take me away access from internet :) Just counting time, is not enough for me :)   Hope we will find something because, I just can't avoid not to loose 4 hours on internet.  I have windows 7


Error while trying to mount pendrive with exFAT

When I insert my pendrive I am given this error:     Error mounting: mount: unknown filesystem type 'exfat'   This is the VX-EDU version.


How to download flash (streaming) videos from sites like youtube, dailymotion, vimeo, etc.?

I have read  but please hear me out.  I use Ubuntu 10.04 LTS (32-bit) and I didn't bother to install the Flash plugin for Firefox as I am using a netbook and sometimes Flash caused firefox to crash. What I would like to ask is if I had the link to the video, is there some way I can download it and watch it offline (via VLC) so that I don't need to install Flash plugin? Command line or GUI techniques is welcome.  Based on what I have read, using the /tmp technique requires Flash plugin to be installed and the video to be loaded before I can go scavenge it in the said directory. Note that I also want to dload videos from site aside from youtube.


How to differentiate between mass and weight?

Today while solving numericals in my physics book I got struck over a question which said "A hammer weighing 1kg .....". In the question they told that the weight of hammer is 1 Kg but when i checked in hints or solution the same question on the net, i saw that they had used 1 kg as the mass of the hammer. So how can we determine if the question is referring to mass or weight of an object?


I have object edited:    When I try to delete element from object by i where i is 0:  delete edited[i]   Then I do console.log(edited) and see instead deleted elements - undefined:    How to get clear output object edited?


In shell-script, what is this command? exit $?  I didn't find any resource to explain it.


Is there an easy way (i.e. without using TikZ, say) to write a line of text backwards? By which I roughly mean, the entire text is reflected about the y axis.  I only need it for a Beamer heading, not anything more general like a hyphenated paragraph.   may be related.


If I have a query like   select sum(number) as points, user from point where expiryDate < NOW() group by user limit 1;   will the DB need to process the entire point table even though it will only need to return 1 row (or afew rows).     Some background:   Users have points that can expire, when points expire, I want to process it. Here I am querying for expired points for each user. Since there are possibly many such points, I am trying to do this process in batches, thus the LIMIT. But my guess is this does not actually optimize anything if the DB searches the entire DB anyways. Is there a better way?


What is the proof of constant energy in the universe?

It might sound a bit naive but,  How is it that conservation of energy is never broken, how is it that we know that always and for sure the energy in our universe is constant and we cannot create a destroyed energy.  I mean is there any mathematical and physical mechanism in the real world that has prevented this from happening or is it just that we have not been able to find any case where energy is being created from nothing that we have led to this conclusion?  Similarly for charges to how is it that in the universe all the charge that is created is conserved.


Is Duff's test of failure just the contrapositive of "D intends a consequence of his action if he acts with the aim of producing that consequence"?

Isn't 2 (Duff's test of failure) just the contrapositive of 1?  I can rephrase 2 as  2.1. If the result didn't occur, would D regard himself as having failed in his plan?  The logical contrapositive of 2.1 is   2.2.  NOT(D regards himself as having failed in his plan) ⇒ NOT(the result didn't occur).  2.3. D regarded himself as succeeding in plan ⇒ Result did occur.    3. Does 2.3 change the author's example with Martin and Alfreda?  Doesn't Martin fail 2.3 too, just like how he fails Duff's test of failure?  Martin would regard himself succeeding in his plan (getting the inheritance), but the result (killing Alfreda) didn't occur.   Herring, . p. 127                But what is the ordinary meaning of intention? The courts have not told us because (presumably)   they think it is obvious. [1.] The widely accepted view is that the defendant ["D"] intends a   consequence of his action if he acts with the aim or purpose of producing that consequence.   Lord Asquith in Cunliffe v Goodman 12 explained that intention ‘connotes a state of affairs   which the party intending . . . does more than merely contemplate: it connotes a state of   affairs which, on the contrary, he decides, so far as in him lies, to bring about.’             It should be remembered that the jury will need to be persuaded beyond reasonable   doubt that the defendant intended the result. In Haigh 13 there was clear evidence that the   defendant had smothered her child. However, there was no evidence as to how or in what   circumstances she had done this. In such a case the Court of Appeal held the jury could not   have been persuaded beyond reasonable doubt that the mother had intentionally killed the   child. She could therefore be guilty of manslaughter, but not murder.             A useful test for seeing whether a result was the purpose of the defendant is to rely on   Antony Duff’s test of failure:14 [2.] had the result not occurred would the defendant regard   p. 128     himself as having failed in his plan? Consider the following case. David throws a burning   rag into Veronica’s house, wanting to frighten her by causing a fire. The rag in fact sets fire   to the house and Veronica is killed. Here, had the rag not caused a fire and so Veronica had   not been frightened, David would have regarded his enterprise as a failure. David therefore   intended to cause the fire. However, had Veronica lived, David would not have regarded the   enterprise as a failure (he wanted to frighten her, not kill her) and therefore he did not intend   to kill Veronica.15              Although Duff’s test is a very useful one there is one set of cases where it has to be treated   with caution. That is where a result is a means to achieve a desired end. Imagine Martin kills   his great aunt Alfreda in order to get his inheritance. The purpose of Martin’s action was to   get the inheritance. Using Duff’s test of failure we could say that Martin would be delighted   if Alfreda had lived, but he had somehow got hold of her money. However, it is generally   agreed that Martin would be said to intend his great aunt Alfreda’s death. This is because   under his plan the desired result (obtaining the inheritance) will be achieved through the   means of killing her. So when we consider the purpose of the defendant this includes not   only the aim, but also the means he wants to use to achieve that end.              To further clarify the core notion of intention, it is useful to distinguish it from other   concepts.


why can't I get the A3 page where I want it (inside an A4 document)

I am using an A3 page within an A4 document.  In the  example below, my plan was to get (in this order):   "foo" on an A4 page "A3 stuff" on an A3 page "bar" on an A4 page   Instead, I get:   "foo" on an A4 page "bar" on an A4 page "A3 stuff" on an A3 page   That is, correct page sizes but wrong order. What am I missing?  code below:  \documentclass[11pt,twoside,a4paper,pagesize]{report} \usepackage{nextpage} \usepackage{afterpage} \usepackage[margin=2cm]{geometry} \usepackage{comment} \usepackage{typearea} \usepackage[absolute]{textpos}  \begin{document}  foo  \newpage \clearpage \pagebreak  \afterpage{ % Insert after the current page \clearpage  \KOMAoptions{paper=a3}  \recalctypearea  A3 stuff  \clearpage \KOMAoptions{paper=A4,pagesize} \recalctypearea }   bar  \end{document}


How can I copy the tree of a particular commit to a non-working folder?

I have a local Git repository and all I want to do is copy all of the files from a particular revision to a folder outside of the working directory. I was assuming that it would just be a single command.  I'm probably missing something obvious, but I can't for the life of me work it out.  Thanks, LJ


Ubuntu 16.04 hangs on "Starting Show Plymouth Boot Screen…"

When I boot my Ubuntu 16.04 system, the screen shows:  /dev/sda1: clean, 914558/6250496 files, 10712202/24999680 blocks ... [OK] Started udev Coldplug all Devices.      Starting Show Plymouth Boot Screen...   Detailed information is .  How to fix it? Can anyone give some advice?


All calendar entries lost across iPhone 4, iPad, MacBook Air after iPhone upgraded to iOS 7. Help?

My husband has lost all his calendar entries after upgrading to iOS 7 on his iPhone earlier today. He deleted 3 football calendars from his iPhone as they were duplicated.  Everything was fine.  Now everything is gone, including on iCloud.  He has no back up elsewhere.  Any ideas?


If I have two s in play, can I use the ability of one to affect the other?  For instance, if one of my Skinshifters has  on it, can I use the other Skinshifter's ability to morph the "caged" one, thereby breaking the Ice Cage?


I downloaded Heroku from Heroku toolbelt using  wget -qO- https://toolbelt.heroku.com/install-ubuntu.sh | sh   in the terminal, which they recommended on their site.   My Ubuntu (14.04.1) didn't recognize the -q0-, so I took it out.  It then seemed to download fine - I see the  in the directory I was in when i downloaded it.   Now, however, it still doesn't recognize heroku as a command.  It also won't show me where it is with the 'whereis' command.  But when I look in the current directory with ls -a, it shows up.  It seems to be there.   How do I install it?


Windows 10 Resizes and Moves Windows when Computer Wakes

When I wake my computer up my windows resize to a smaller form and they also seem to move the upper left hand corner of the screen. There is an answer to this question on  but it's for Windows 7 and it's unclear what the values in the registry should be changed to. Also it's worth noting that this issue only happens when my computer is asleep for an extended amount of time which leads me to believe it's related to windows hibernation sleep mode. My computer is an Acer Aspire S7-392, I'm running it at 2560x1440 scaled at 125% Windows 10.


Why is $A\rightarrow \operatorname{im}(f)$ an epimorphism in an abelian category

This is an exercise in Ravil Vakil's Algebraic Geometry notes labeled hard  Let $f: A\rightarrow B$ be a morphism in an abelian category. Then $f$ factors through a morphism $f':A\rightarrow \operatorname{im}(f)$ (recall that $\operatorname{im}(f)$ is the (domain of the) kernel of the cokernel of $f$).   Why is $f'$ an epimorphism? That is why does $g\circ f'=0$ imply $g=0$ for any $g: \operatorname{im}(f)\rightarrow C$   ?


What does it mean that random effects are highly correlated?

What does it mean when two random effects are highly or perfectly correlated? That is, in R when you call summary on a mixed model object, under "Random effects" "corr" is 1 or -1.  summary(model.lmer)  Random effects: Groups   Name                    Variance   Std.Dev.  Corr                  popu     (Intercept)             2.5714e-01 0.5070912                                 amdclipped              4.2505e-04 0.0206167  1.000                          nutrientHigh            7.5078e-02 0.2740042  1.000  1.000                   amdclipped:nutrientHigh 6.5322e-06 0.0025558 -1.000 -1.000 -1.000   I know this is bad and indicates that the random effects part of the model is too complex, but I'm trying to understand   1)what is doing on statistically   2)what is going on practically with the structure of the response variables.   Example  Here is an example based on "" by Bolker et al  Download data  download.file(url = "http://glmm.wdfiles.com/local--files/trondheim/Banta_TotalFruits.csv", destfile = "Banta_TotalFruits.csv") dat.tf <- read.csv("Banta_TotalFruits.csv", header = TRUE)   Set up factors  dat.tf <- transform(dat.tf,X=factor(X),gen=factor(gen),rack=factor(rack),amd=factor(amd,levels=c("unclipped","clipped")),nutrient=factor(nutrient,label=c("Low","High")))   Modeling log(total.fruits+1) with "population" (popu) as random effect  model.lmer <- lmer(log(total.fruits+1) ~ nutrient*amd + (amd*nutrient|popu), data= dat.tf)   Accessing the Correlation matrix of the random effects show that everything is perfectly correlated  attr(VarCorr(model.lmer)$popu,"correlation")                           (Intercept) amdclipped nutrientHigh amdclipped:nutrientHigh (Intercept)                       1          1            1                      -1 amdclipped                        1          1            1                      -1 nutrientHigh                      1          1            1                      -1 amdclipped:nutrientHigh          -1         -1           -1                       1   I understand that these are the correlation coefficients of two vectors of random effects coefficients, such as  cor(ranef(model.lmer)$popu$amdclipped, ranef(model.lmer)$popu$nutrientHigh)   Does a high correlation mean that the two random effects contain redundant information?  Is this analogous to multicollinearity in multiple regression when a model with highly correlated predictors should be simplified?


How can I insert some R code (as just plain text) into LaTeX

I'm writing a report for a course and we need to include our R script in the appendix of our report (It just needs to be like it would in a plain text file, just in LaTeX. How can I insert this? My document class is MastersDoctoralThesis.


UK standard visit visa refused under V4.2 a) and c) & V4.3 a) and c)

I need help understanding what they ask of me. This is my second refusal in a month. Let me give you the background story to the whole process.  Last April 2017, after visiting Thailand with my then friend, we decided to date exclusively and for me to visit him on July that year. I applied for a UK visa and put my newly acquired boyfriend as my sponsor but stated that he was a family friend instead, as we are a homosexual couple and I was quite apprehensive that stating or labelling ourselves as a homosexual couple would hinder the chances of granting a visa. Another reason is that I had only turned 18 a few months prior to the UK visa application in 2017.  As I recall, I only submitted my school transcripts, passport copies of my own and my boyfriend's, bank statements of each of ours and his letter of invitation. I got the UK visit visa but unfortunately did not travel due to personal commitments with the University.  My first refused visa application (letter not found) mentioned I failed to meet requirements of Appendix V paragraph V4.2 a) and c) and states that I heavily relied on my sponsor (boyfriend) and did not have funds of my own as well as not providing enough ties that convince my return to the country of my residence.   Now, my boyfriend ("partner" as per application) and I are persistent that I visit him in his home in Wales from 18th July 2018 to 29th August 2018. We bought a round-trip ticket. I declared that I had GBP 1,000 in my account for my personal expenses with my bank statement as evidence, my boyfriend's willingness to pay of GBP400 for my trip and also added my mum as another payee, who woule be funding GBP 1,050 for my trip (I thought this would make a stronger base for my app.).  I declared in my application that I would be expecting to spend around GBP 500-600 in expenses (excluding the round-trip tickets back home). I mentioned that we we're on a long-distance relationship and we traveled to a country in Asia to meet instead of our own country homes).  For my accommodation, I mentioned that I would be staying at my partner/boyfriend's rented house in Wales. For my visit purpose I stated that I planned to visit a University campus as a prospect student l, as it is an associated university of the college I am currently studying in and I am able to top-up my degree to a bachelor's in this Welsh university. Another reason is the obvious visit for my partner, as we haven't seen each other in a year (duration not stated in application), as well as visit local tourist, cultural and historical attractions, and visit his friends and family.  I have submitted my previous employment contracts, and my 2 current employments (my bosses aren't keen on stating until I have to work for them, as I am employed only part-time in both establishments. They only state my starting date until PRESENT), my current payslips, my identity card that mentions permanent residency in my country of residence (other than my nationality), and birth certificate that ties me to my mum, who is also living with me, my proof of address via letters from schools and other government bodies, and a school tcertificate that states I am an enrolled student in their campus for the year 2018 - 2019. These are the documents I have submitted to prove I have ties to my country of residency and must return by the end of my trip.  What can I do to get approval on my next application? How can I prove my relationship with my boyfriend?  Please assist. Should there be any more queries or should you require further information about my application, please comment below and I will answer promptly. Your help is highly appreciated.


How can I find the first element returned from a  type of list returned by SQLite?

I have this code I am reviewing:             var phrases = db2                 .Query<Phrase>("SELECT C.Id As CategoryId" +                               " FROM Category AS C" +                               " JOIN Phrase AS P ON C.Id =          P.CategoryId");   phrases has a type of List<Phrase>  Now I would like to find the first element of the list. But with my IDE when I hover over "phrases."  on another line all I see is the option to get a .count .add .addRange .find and similar.   Can someone explain how I can get the first element?


KOMA-Classes (scrbook, scrreprt, ... ): Disable chapter separation in \listoffigures and \listoftables

I use \listoffigures and \listoftables. Both commands create line breaks for items from different chapters. How can you stop that?  Screenshot:


Let $a$ and $n$ be integers greater than $1$. Suppose that $a^n - 1$ is prime. Show that $a=2$ and $n$ is prime.


If a sports team is down by 1-2 in a best of 7 series, what is their chance of winning (if both teams have a 1/2 chance of winning every game)?

I know that the team has to win 3 of the 4 remaining games. So I thought that from the 4 remaining games, there are a total of $2^4 = 16$ total different outcomes.   Could someone point me towards the right direction to determine the probability of the team winning 3 of the 4 remaining games? Would it be 4C3/16 since the three wins can be chosen amongst the 4 games left?


How to delete duplicates in SQL table with Primary Key

As an example, consider the following table.      +-------+----------+----------+------------+     | ID(PK)| ClientID | ItemType | ItemID     |     +-------+----------+----------+------------+     | 1     | 4        | B        | 56         |     | 2     | 8        | B        | 54         |     | 3     | 276      | B        | 57         |     | 4     | 8653     | B        | 25         |     | 5     | 3        | B        | 55         |     | 6     | 4        | B        | 56         |     | 7     | 4        | B        | 56         |     | 8     | 276      | B        | 57         |     | 9     | 8653     | B        | 25         |     +-------+----------+----------+------------+   We have a process that's causing duplicates that we need to delete. In the example above, clients 4, 276, and 8653 should only ever have one ItemType/ItemID combination. How would I delete the extra rows that I don't need. So in this example, I'd need to delete all row contents of ID(PK)s 6, 7, 8, 9. Now this would need to happen on a much larger scale so I can't just go in one by one and delete the rows. Is there a query that will identify all ID(PK)s that aren't the lowest ID(PK) so I can delete them? I'm picturing a delete statement that operates on a subquery, but I'm open to suggestions. I've tried creating a rownumber to identify duplicates, however, because the table has a PK all rows are unique so that hasn't worked for me.  Thank you!  Edit: Here's the expected result      +-------+----------+----------+------------+     | ID(PK)| ClientID | ItemType | ItemID     |     +-------+----------+----------+------------+     | 1     | 4        | B        | 56         |     | 2     | 8        | B        | 54         |     | 3     | 276      | B        | 57         |     | 4     | 8653     | B        | 25         |     | 5     | 3        | B        | 55         |     +-------+----------+----------+------------+


The question looks like obvious but I could not find the answer.  In how many ways can you cover a 2×n chessboard by dominoes?


Common date and time format for European and US users

I'm creating a form with both date and time fields. To help the user I'm using a placeholder value to demonstrate how the the respective formats should look like, but I'm not at all sure on what formats to settle.  What date and time format do most people in both continents compound understand/renders less validation errors?  For time I need Hours and Minutes. For date I need Year, Month, Day.


Since we know that all accelerated charges radiate energy and we also know that all matter is made up of protons and electrons which are all the while doing accelerated motion.So from this can i conclude that every piece of matter radiates energy because of jiggling motion of atoms?


Set of surjective bounded linear operator between two Banach spaces is open.

X and Y are two Banach spaces. I've to prove that the set of all subjective bounded linear operators is an open subset of B(X, Y). I think I've to use the open/closed mapping theorem but don't know where to start.


A tv show where teens go into storms and end up in like a race track in a parallel dimension and fight villains for keys

This is a cartoon/animation which aired between 2005-2010 ish. The teens would be like put into these mazes where they would race against aliens for keys to their dimension and I remember one of the main characters rode a yellow bike that kinda looked like a tron bike.  The thing is above is a vague outline of what the keys looked like but they did have weird symbols and they used to stick to the hood of the cars when collected.


How can I (algorithmically) count the number of ways n m-sided dice can add up to a given number?

I am trying to identify the general case algorithm for counting the different ways dice can add to a given number.  For instance, there are  with two 6-dice.  I've spent quite a bit of time working on this (for a while my friend and I were using Figurate numbers, as the early items in the series match up) but at this point I'm tired and stumped, and would love some assistance.  So far we've got something to this effect (apologies for the feeble attempt at mathematical notation - I usually reside on StackOverflow):  count(x):    x = min(x,n*m-x+n)    if x = n       1    else       some sort of (recursive?) operation   The first line simplifies the problem to just the lower numbers - where the count is increasing.  Then, if we're looking for the count of the minimum possible (which is also now the max because of the previous line) there is only one way to do that so it is 1, no matter the n or m.


Is there a word which denotes expertise in framing search-engine queries?

I am looking for a term which denotes that 'X person is an expert in framing search-engine queries' . Some synonyms such as slackers and hackers come to mind but they are pretty generic terms. Is there a specific term or should I just use 'slackers' or/and 'hackers' and be done with it.


Wordpress external DB: error in your SQL syntax - get_var

after feeling like sitting hours in front of my code, I thought maybe someone sees my mistake.  I am using wordpress and try to access an external database: For Example: $test = 2017; Chemp_ID = "1";  $mydb = new wpdb (......); $state = $mydb->get_var("SELECT ablauf FROM ".$test." WHERE chempionid ='". $Chemp_ID."'");     SQL Error: [You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '2017 WHERE chempionid ='1'' at line 1] SELECT ablauf FROM 2017 WHERE chempionid ='1'  I just don't see the synthax error, since the sql output seems to be fine to my eyes: SELECT ablauf FROM 2017 WHERE chempionid ='1' Hope someone is not as blind as me   Thank and kind regards Daniel


Mathematical proof of an electron can't absorb a photon

How can we mathematically prove that a free electron can't absorb a photon totally?


20.04: Installing ver 4.4.0 of Paraview for Openfoam fails

I previously read an answer 4 days ago on how to install  for the new release of Ubuntu 20.04, but haven't been successful installing  using the same technique.    How do I install Paraview 4.4.0 for OpenFoam on Ubuntu 20.04?


I get the following error when starting my application:  java.lang.NullPointerException         at me.MyApp.MyApp.Database.getConn(Database.java:30) ~[?:?]         at me.MyApp.MyApp.Models.MyAppModel.<init>(MyAppModel.java:18) ~[?:?]   Here is how I've set up my Database class:  public class Database {     private static MyApp instance = MyApp.getInstance();     private static Config config = new Config();   private static HikariDataSource ds = new HikariDataSource();  static {      HikariConfig dbConfig = new HikariConfig();     dbConfig.setJdbcUrl("jdbc:mysql://localhost:3306/" + config.get("database.database"));     dbConfig.setUsername(config.get("database.username"));     dbConfig.setPassword(config.get("database.password"));     dbConfig.setDriverClassName("com.mysql.jdbc.Driver");     dbConfig.addDataSourceProperty("cachePrepStmts", "true");     dbConfig.addDataSourceProperty("prepStmtCacheSize", "250");         dbConfig.addDataSourceProperty("prepStmtCacheSqlLimit", "2048");  }      public static Connection getConn() {         try {             return ds.getConnection();         } catch (SQLException e) {             e.printStackTrace();         }         return null;     }  }   And here is my model class that triggers the error:  public class MyAppModel {      private MyApp instance = MyApp.getInstance();     private Connection connection;       public MyAppModel() {         connection = Database.getConn();     }      public void createTable() {         BukkitRunnable r = new BukkitRunnable() {             @Override             public void run() {                 try {                     String sql = "CREATE TABLE IF NOT EXISTS `myapp` ( " +                             " `id` INT NOT NULL AUTO_INCREMENT ," +                             "`uuid` VARCHAR(255) NOT NULL ," +                             " `join_message` VARCHAR(255) NOT NULL ," +                             " `quit_message` VARCHAR(255) NOT NULL ," +                             " `change_points` INT NOT NULL," +                             " `last_modified` TIMESTAMP NOT NULL," +                             " PRIMARY KEY (`id`)" +                             ")";                     Statement statement = connection.createStatement();                     statement.executeUpdate(sql);                 } catch(SQLException e) {                     e.printStackTrace();                 }             }         };          r.runTaskAsynchronously(instance);     } }   I think MyAppModel connection returns null and I'm handling the TryCatch handling wrong, but I'm not entirely sure why it's returning null. What am I doing wrong?        I understand the concept of a NullPointerException but not why my application is giving me this error.


C++ output a double variablelike a string

Basically i tried to output a double variable with but only PrintDigit(char ). Here is my code  void    printDigit(const char c) { cout << c ; }  void    PrintDigits(double target) {     if (target < 0)     {         printDigit('-');         target = -target ;         PrintDigits((int)target / 10);     }     else if ((int)target / 10 == 0)     {         printDigit('0' + (int)target % 10);         if (target - (int)target % 10 != 0)         {             target -= (int)target % 10;          do {             target *= 10 ;             //for debugging             cout << endl << target << endl;             cout << floor(target)<<" "<<ceil(target)<<endl;         } while (floor(target) != ceil(target));          printDigit('.');         PrintDigits(target);     } }   }  And there are some strange problems ,here is the output when i tried to input 3.53:   My question is why floor(target)==52 while target==53 ? And is there any better way to do this ?(with only PrintDigit(char) function and don't transfer the double variable to string)


How to show that if $H \leq G$ and $H$ is the only subgroup of $G$ of order n than $ H\trianglelefteq G$

Say $G$ is a finite group and $H$ is a subgroup of $G$ such that $H$ is the only subgroup of $G$ of the order $n$.  How would I prove that $H$ is a normal subgroup of $G$?  I was thinking of using the fact that $|gHg^{-1}| = |H|$, but I did not get anywhere.


Can I omit "that" in the following sentences?  1: It was such a terrible experience that I will never forget it.   2: It is such nice weather that I would like to go to the beach.   Thank you very much!


Amperes Law: $\oint\vec{H}.d\vec{l} = I_{enc}$  Is the current, $I_{enc}$, equal to 0 outside of the conductor ($\rho > a$)  because the current density, $\vec{J}$, outside is 0?


How can I use a Linksys AC 1200 Wireless Adapter?

I tried following  guide, but when I ran sudo modprobe -v 8812au I received the error modprobe: FATAL: Module 8812au not found in directory /lib/modules/5.4.0-72-generic I also found this same guide in an answer to a question on how to get this to work. I came across  thread where the OP was having the same issue, but it looks like he never received any replies. Does anyone have any ideas? I tried rebooting and doing everything again and the same thing happened. My other WiFi adapter that is actually meant for Linux and I believe uses Broadcom drivers works perfectly fine. Edit: Came across  guide, the solution is in the comments. I had to build from source, everything appears to be working now.


I am trying to import the pymodis library within python and I keep getting error that   "GDAL installation has no support for HDF4, please update GDAL"  I am running the latest version of GDAL [Version: 1.11.2+dfsg-1~exp2] and tried runnign the update command too. But still the same error persists.   I am running Ubuntu 15.04 and using the terminal to run  python.


Power of subset of finite group is a subgroup.

Let $G$ be a finite group and $S$ a nonempty subset of $G$. I want to prove (or disprove) that $S^{|G|}$ (that is products of length $|G|$ of elements of $S$) is a subgroup.   My work so far :  Since we are in a finite group, it suffices to show that $S^{|G|}$ is stable under the group product.  When $e\in S$, we have $S^{|G|} = \bigcup_{k=0}^{|G|}S^{k}$ and this is the subgroup generated by $S$.  However I'm having issues solving this when $e\notin S$.  I've tried to consider the monoid $C\subset \Bbb N$ of length of products of elements equal to the neutral element. If $S^{|G|}$ is not a group, then there exists $k\notin C$ smaller than $|G|$ such that $k+|G|\in C$. However I don't know where to go from here.  Any help is appreciated !  Edit : Note that I want products of exactly $|G|$ elements of $S$, not products of at most $|G|$ elements of $S$


How to output potentially multi-line environment variables from the output of env system command?

I am having issues trying to parse / grep / pcregrep potentially multiple line environment variable values from the output of the env system command.  I am trying to get just the variables that start with a certain prefix that may or not be multiple lines.  So far I have been trying variants of this (with a lookahead):  env | pcregrep -M '^PREFIX_\S+\=[\S\s]+(?=^\S+\=.*$)'   But the above returns everything.  I think it is because the middle pattern is greedy with newlines, but I don't know how to get around that.  My problem is that I have no known end pattern, except the start of another variable pattern.  Does anyone know how I might be able to accomplish this task?  Thanks for any information you can provide!


We already known that $$ (L^p(\Omega))^* = L^q(\Omega), $$ for all $1\le p < \infty $ and $q$ is the exponent conjugate to $p$. So that, $L^p(\Omega)$ is reflexive with $1<p<\infty$. However, $L^1(\Omega)$ is not, due to $$ (L^\infty(\Omega))^* \supset L^1(\Omega), $$ but I don't know why. Can we find a element $f\in (L^\infty(\Omega))^*$ and $f \notin L^1(\Omega)$?


iOS 9.3.1 / OS X 10.11.14: Laptop doesn't show up in Airdrop locations on phone

In the past when I was sitting near my laptop (from early 2015) with the Photos app open on my iPhone (from fall 2014), when I would tap share a picture, my laptop would show up in AirDrop.  Now it is not showing up anymore!   From my laptop when I click on AirDrop from the Finder, my phone appears, and I am able to share files from my laptop to the phone.   I have confirmed that Bluetooth and Wifi are enabled for both devices. From Settings>Bluetooth on the phone, I saw my laptop listed, but when I tried to connect, it failed.  I deleted it from the list of My Devices and tried to re-pair my laptop and computer using the Bluetooth File Exchange app on my laptop.  Even after seemingly going through the process correctly, it showed the laptop in the list of My Devices again, but as "Not Connected," and when I clicked on the info icon to see more, it said, "[Laptop name] is not supported."  But how could this be?!  I have the latest OS versions on both! And now when I try to send from my laptop to the phone, which was working when I started debugging this, it says that "[Phone name] does not have the necessary services."  Again -- why?!  (However, when I share through the Finder from laptop => phone, it does work, although it's the reverse direction I need to get working again.) I had the laptop under the setting "Allow me to be discovered by: Contact Only," but I switched it to "Everyone" -- no luck.   This is maddening.  Help!


Possible Duplicate:             I know there are a lot of tools to create a bootable usb for ubuntu with windows.  But I'm sure, that there was a possibility in the ubuntu installation directory. I used it some time ago, but I can't find it anymore :(  I think it was a .exe, or a .bat, any case a cmd window has opened, some things were executing and the usb was bootable. And it was in the ubuntu directory!  Is there still the possibility to do that? Does that file exist? I unfortunately can't remember.


Is there an optimal configuration or any way in which I can effectively connect

I currently have a 72V e-bike.  The configuration of the batteries directly from manufacturer is 6 12v 20AH valve regulated lead acid batteries connected in series. In taking the  limiter harness out of the mix my speed went up roughly 15kmh (this is being done strictly as a learning expierience and only driven on my own private property.) I have a 12V 14 Ah lead acid and another 12V 6.5Ah lead acid. I was wondering if connecting the two 14Ah and 6.5 Ah in a parallel circuit and then adding to overall power bank in series thus having 96V.  Will my speed increase any more? Is this an idea worth pursuing and if my configuration won't work is there any other that is worth pursuing?   Alternatively I'm taking one 12V to power an amplifier on bike.


Copy Production data to Developer Sandbox

I'm on Enterprise Edition and only have a developer sandbox... (I really miss my Full Copy sandbox and UE).  I need to do some tests against "real" data. I have a strict rule of not testing or developing in Production. This means I need to get a sample of my Real data in production into my sandbox.  Is there anyway to do this without doing a bunch of exports, imports, and additional reports/imports to get the relationships right?


Initramfs comes while booting ubuntu. how to solve?

On my multibooting old laptop when I trying to boot ubuntu its showing     BusyBox v1.21.2 (ubuntu 1:1.21.0-1ubuntu1) built-in shell(ash)      Enter 'help' for a list of built-in commands.      (initramfs) _   others os working fine.


If $\|u+\lambda v\| \ge \|u\| \forall \lambda$ then $u \perp v$

Let $H$ be a Hilbert space and $u,v \in H$. I need to prove:     If $\|u+\lambda v\| \ge \|u\|$ $\forall \lambda \in K = \mathbb{C},\mathbb{R}$ then $u \perp v$.   I need this to close a triple equivalence and I'm not sure if this way is evident or I should follow another way.


Loop through vector with Iterator vs. [] before C++11

Which of the following method is better?  vector<int> vecInts; // initialize vecInts; // method ONE     for( vector<int>::size_type szInd = 0; szInd < vecInts.size(); ++szInd ) {   // process vecInts[szInd] }  // method TWO for( vector<int>::iterator iter = vecInts.begin(); iter != vecInts.end(); ++iter ) {   // process *iter }   During code review, I am always suggested by one person that I should replace the method one with iterator version and I argue that it doesn't matter. Am I right? Thank you


How can I label \rightleftarrows above and below?

How can I label $\rightleftarrows$ above the top arrow and below the bottom arrow?


Why is the relative velocity of B with respect to A negative of the relative velocity of A with respect to B?

I'm trying to figure out how to derive the transformation matrix for the Lorentz boost. Consider two inertial frames A and B, and let B move at a constant velocity V with respect to A. All the derivations I've seen assume that this implies that A moves at a velocity -V with respect to B. This does not seem obvious to me, can someone explain why this is true?  Edit : To clarify, I understand "inuitively" why this is true. What I'm interested in doing is deriving the Lorentz boost formula axiomatically - i.e., using the invariance of the speed of light as my starting point and showing that the Lorentz boost is the only linear transformation that satisfies this. What I don't get is how this reversal of velocity follows from this.


An option is not seeing an argument (that is a variable) in bash, please help?

#!/bin/bash  counter=2  while [ $counter -lt 19 ] do            username= head -n $counter ./user_sheet.csv | tail -n 1 | cut -d ';' -f1          psswd= head -n $counter ./user_sheet.csv | tail -n 1 | cut -d ';' -f2          full_name= head -n $counter ./user_sheet.csv | tail -n 1 | cut -d ';' -f3          group= head -n $counter ./user_sheet.csv | tail -n 1 | cut -d ';' -f4          second_group= head -n $counter ./user_sheet.csv | tail -n 1 | cut -d ';' -f5           sudo useradd $username -m -g $group -s /bin/bash -c $full_name          if [ second_group = LPGestionnaires ]         then                  usermod -a -G $second_group $user         fi          #echo "$username:$psswd" | chpasswd          ((counter++)) done echo Execution complete   The part where it says sudo useradd $username -m -g $group -s /bin/bash -c $full_name is the part that isn't working, my -g option isn't seeing the variable $group argument as an argument, when I execute my script it returns this: useradd: group '-s' does not exist  I'm pulling the data from a .csv file that is located correctly.  If anyone could help that would be great!  Thanks!


There were $107$ people at the wedding and $11$ tables, which could accommodate $10$ people each. This means there were about $11^{107}$ possible seating plans.  I read that in a book but didn't really understand the solution. I mean the solution doesn't consider the fact that each table can have a max of $10$ people and it actually doesn't care about the capacity of the table. Can anyone explain it to me?


What do the residuals in a logistic regression mean?

In answering  question John Christie suggested that the fit of logistic regression models should be assessed by evaluating the residuals.  I'm familiar with how to interpret residuals in OLS, they are in the same scale as the DV and very clearly the difference between y and the y predicted by the model.  However for logistic regression, in the past I've typically just examined estimates of model fit, e.g. AIC, because I wasn't sure what a residual would mean for a logistic regression.  After looking into  a little bit I see that in R there are five types of glm residuals available, c("deviance", "pearson", "working","response", "partial").  The help file refers to:     Davison, A. C. and Snell, E. J. (1991) , eds. Hinkley, D. V., Reid, N. and Snell, E. J., Chapman & Hall.     I do not have a copy of that.  Is there a short way to describe how to interpret each of these types?  In a logistic context will sum of squared residuals provide a meaningful measure of model fit or is one better off with an Information Criterion?


How do I find Frost the Horse if he runs away during "Promises to Keep"?

How do I find Frost the Horse if he runs away during the quest "Promises to Keep"? I got attacked while riding Frost, dismounted to fight, and then the horse ran away. Now I can't complete the quest.   Is there any way to restart the quest or find Frost again?


How to get the latest gVim on Ubuntu 14.04?

I would like to create a gVim AppImage using packages from 14.04 (why not 16.04? Because 16.04 packages are too new as AppImages will only run on distributions newer or the same age as the distribution who's packages they're built from). Now I would like my gVim AppImage to be for the very latest version of gVim, so I need a repository for 14.04 that provides the very latest gVim. I have searched Launchpad for Vim PPAs that are maintained and have not found any (all the ones I found are out-of-date).  My questions:   I know I can build the latest gVim as a Debian package with checkinstall, but I want to use gVim from a package repository to build my gVim AppImage as it makes things a lot simpler. Where can I find a recent Debian package of gVim? Alternatively, how can I build an AppImage container from an arbitrary set of binaries (downloaded somewhere or compiled from source)?


Does creating an object using reflection rather than calling the class constructor result in any significant performance differences?


How to re-enable GRUB when installed Ubuntu system won't boot?

I had Windows Vista and Ubuntu 12.04 LTS dual booting on my Lenovo SL300 laptop. I used a windows 7 home premium install disk to install 7 on a new partition. Then I uninstalled vista by deleting the windows vista partition. Now when I boot the computer it goes straight into windows 7 without displaying the GRUB bootloader.  The ubuntu partition is still untouched and I would like to be able to acess it without reinstalling ubuntu. Do I someohow need to confiure grub through windows? I still have my 12.04 LTS live disk, so I could maybe use that to access the GRUB files that are on my ubuntu partition? please help


Software: QGIS 2.18.19 Spreadsheet: Office Libre 5.3.4.2 GitHub Link:     Update 1 @ben-w I turned on Toggle Editing. When I tried to change datatype, I get error     Original Question I wish to change datatype of column BBL of Bklyn_BBL.zip (the .dbf file) from Decimal to Whole Number. When try in Office Libre I keep getting errors when I save  The QGIS Attribute table is not editable  Then went to QGIS I tried downloading Table Manager plugin to edit the attributes but I cannot find it under Processing > Toolbox Please guide.


I'm a biking amateur, but I've been wanting to upgrade and get more serious.  Just recently, I was gifted a pretty new bike and I'm wanting to figure out how BSO it is so I can either upgrade it or get rid of it get a new, nicer bike.  What should I check to tell how much of this bike is cheap BSO material and how much will last?  I'd really like a part-by-part list so I can replace them or decide if it's not worth it.


try/catch block return with finally clause in java

Given the following try/catch block in java:  try{   return; } catch(SomeException e){   System.out.println(e); } finally{   System.out.println("This is the finally block"); }   and according to this post: "" I can see that the program's output will be 'This is the finally block'. However, I can't figure out how that would be possible since the print statement is preceded by a return...  I suspect that this behaviour has something to do with threading, however I am not certain. Please enlighten me. Thank you.


Catch event of auto_shrink in SQL Server Log?

I am aware of the disadvantages of AUTO_SHRINK being configured on SQL Server databases. Recently, in a new environment, I discovered several production servers with the Auto Shrink option turned on.  Now, before I change this configuration, I wonder: Since the auto_shrink event starts at 25% unused space I wonder if and/or when this is actually happening on the SQL Servers. I  tried to find the relevant SQL-Event-Logfile entries. I started manual shrinking on test databases but there is no Event-Log entry showing up.  Does anyone know how to find out when shrinking has happened within the latest days or weeks on a SQL Server?


csquotes and biblatex warning No style for language 'bahasai' and Language 'bahasai' not supported

my tex:  \documentclass[12pt,a4paper]{report} \usepackage{setspace} \onehalfspacing \usepackage[   left=3cm,   headheight=33pt,   top=3cm,   right=2cm,   bottom=2cm,   includehead,   includefoot,   bindingoffset=5mm ]{geometry} \usepackage[utf8]{inputenc} \usepackage[bahasai]{babel} % <---- main language last \usepackage{csquotes} \usepackage{biblatex} \addbibresource{sample.bib} \usepackage{lipsum}  \usepackage{titlesec}  \titleformat{\section}   {\normalfont\fontsize{14}{15}\bfseries}   {\thesection}   {1em}   {}  \usepackage{graphicx} %\usepackage[colorinlistoftodos]{todonotes} %\usepackage{showframe}  \usepackage[linktocpage]{hyperref} \hypersetup{     colorlinks,     citecolor=black,     filecolor=black,     linkcolor=black,     urlcolor=black }  \makeatletter \def\@makechapterhead#1{%   %%%%\vspace*{50\p@}% %%% removed!   {\parindent \z@ \centering \normalfont     \ifnum \c@secnumdepth >\m@ne         \Large\bfseries \MakeUppercase{\@chapapp}\space \thechapter % <--- uppercase         \par\nobreak         \vskip 0\p@     \fi     \interlinepenalty\@M     \LARGE \bfseries #1\par\nobreak     \vskip 30\p@   }} \def\@makeschapterhead#1{%   %%%%%\vspace*{50\p@}% %%% removed!   {\parindent \z@ \centering     \normalfont     \interlinepenalty\@M     \LARGE \bfseries  #1\par\nobreak     \vskip 30\p@   }} \makeatother   \usepackage{fancyhdr}  \pagestyle{fancy} \rhead{\includegraphics[height=1cm]{LOGO_PLN.png}} \lhead{\includegraphics[height=1cm]{LOGO_IP1.png}} \renewcommand{\headrulewidth}{1.5pt} \begin{document} \pagenumbering{Alph} \begin{titlepage}     \begin{center}         \includegraphics[width=5cm]{LOGO_IP2.PNG}\\[0.25cm]         \textbf{PT. INDONESIA POWER UJP ADIPALA}\\[1.75cm]         \textbf{PROJECT ASSIGNMENT \\[4cm]}         \textbf{RETROFIT PLC TWIDO KE PLC S7-200}\\[4cm]          \textbf{Diajukan Oleh:}\\         \textbf{Abdul Qoyyim}\\         \textbf{SIC-257}\\[3.5cm]         \textbf{PROGRAM ON THE JOB TRAINING}\\         \textbf{DIKLAT PRAJABATAN ANGKATAN 23}\\         \textbf{TAHUN 2017}     \end{center}  \end{titlepage}  \pagenumbering{roman}  \chapter*{LEMBAR PENGESAHAN} \thispagestyle{fancy} \lipsum[3]  \chapter*{ABSTRAK} \thispagestyle{fancy} \lipsum[5]  \chapter*{KATA PENGANTAR} \thispagestyle{fancy} \lipsum[6]   \tableofcontents \thispagestyle{fancy} \listoffigures \thispagestyle{fancy} \listoftables \thispagestyle{fancy} \pagebreak  \pagenumbering{arabic}  \chapter{PENDAHULUAN} \thispagestyle{fancy} \lipsum[1] \section{Latar Belakang} \lipsum[2-3] \section{Perumusan Masalah} \lipsum[3] \section{Maksud dan Tujuan Project Assignment} \lipsum[4] \section{Ruang Lingkup} \lipsum[5] \section{Metodologi} \lipsum[6]  \chapter{LANDASAN TEORI} \thispagestyle{fancy} \lipsum[7] \begin{figure}[h]     \centering     \includegraphics[width=0.25\textwidth]{LOGO_IP3.png}     \caption{a nice plot}     \label{fig:mesh1} \end{figure}  As you can see in the gambars \ref{fig:mesh1}, the  function grows near 0. Alsos, in the page \cite{einstein} \pageref{fig:mesh1}  is the same example. \lipsum[1-3]  \chapter{PEMBAHASAN PROJECT ASSIGNMENT} \thispagestyle{fancy} \lipsum[8]  \chapter{MANFAAT PROJECT ASSIGNMENT} \thispagestyle{fancy} \lipsum[9] \section{Manfaat Finansial} \lipsum[10] \section{Manfaat Non Finansial} \lipsum[11] \chapter{KESIMPULAN DAN SARAN} \thispagestyle{fancy} \lipsum[12]  \section{Kesimpulan} \lipsum[13-14] \section{Saran} \lipsum[14] \printbibliography[heading=bibintoc,title=Referensi] \end{document}


How do I get 16-bit programs to work on a 64-bit Windows?

Possible Duplicate:          When trying to play an old game, Skyroads for instance, I get the following error message:     The version of this file is not   compatible with the version of Windows   you're running. Check your computer's   system information to see whether you   need a x86 (32-bit) or x64 (64-bit)   version of the program, and then   contact the software publisher.   If I understand it correctly, Skyroads is a 16-bit program which is not supported in a 64-bit operating system? Is it impossible to get it running on a 64-bit operating system?


What is the purpose of declaring a type different to the type you are instantiating?

I recently watched a tutorial that declared an instance of a new object using the following method:  class exampleClass : IEnumerable {     //Class stuff... }  class Main {     public void Method1     {         IEnumerable Obj1 = new exampleClass();     } }   I couldn't work out what the purpose or benefit of it was. I've always declared the type I will be instantiating so this way of doing it seemed alien.  Please could someone explain why you would do this and what the benefits are?  (The example above is purely to highlight the declaration of the new objects' type and then calling to instantiate a class of a different type.)


Show that $ax \equiv b (mod\ m) $ has solution iff $gcd(a,m)$ divides $b$

Here's what I have:     $ax \equiv b (mod\ m)$ has answer if there are $x$ and $y$ such that     $b = ax + my$     Let $d = gcd(a,m)$. Then:     $d|a$ and $d|m \Leftrightarrow d|ax$ and $d|my \Leftrightarrow d|(ax+my)$     Since $m$ divides the right part of the equation, it also has to divide the left part.     Is this a valid proof for what I want?


How could a user with 1 reputation point leave a comment?

On this question on Super User …    … there is a comment:  Yes, it is possible. Check out this question: apple.stackexchange.com/questions/447/… –   The interesting thing is that:  The user has 1 reputation There was no migrated / deleted answer The question itself was not migrated The user is registered The user does not have any associated network account, therefore no network profile The mods .   Why were they able to post a comment?


Does whether a Wizard can maintain the spell Polymorph upon themselves depend on the form they change into?

The level 4 spell Polymorph requires concentration to maintain.  The subject retains their personality and alignment, but they have the mental statistics of the new form, which must be a beast and cannot speak or cast spells.  If a caster targets themselves with this spell, can they concentrate to maintain it, or does this depend on the mental statistics of the beast form they choose?  This situation certainly occurs in practice, since Wizards reaching level 10 in the School of Transmutation gain the Shapechanger feature.  This allows them to cast Polymorph, but only upon themselves and only to change into a beast of CR 1 or lower.  Beasts with CR 1 or less range in Intelligence from the Giant Eagle (Int 8) to the Frog (Int 1).


Is it possible to flag edit reviews as invalid?

This edit was approved:  .  However, bolding a few occurences of "github" and "SELinux", and changing "I have to" to "I've to"  seems like a very poor edit indeed.  The editor has had 131 edit suggestions approved, and 56 edit suggestions rejected, and it seems to me a good number of those approved should probably have been rejected  (  )  I could roll this edit back, but I don't know if the edit review link will still work at this point, and I'm not yet sure of the guidelines around that.  My question is this:  Is it possible to flag individual reviews for attention so that our bored and underworked moderators can send the reviewers a helpful message about editing, and possibly give them a temporary break from suggested edit reviews?  Of course, I'm new to hitting the suggested edit reviews (I generally stay in the close vote list) - I may be wrong about the validity of the edit.  If that's the case please let me know in no uncertain terms.


Is it possible to install drivers for new hardware in Android OS?

I would like to know if it is possible  to install drivers for new hardware in Android OS. I know that Android images usually come only with the drivers for the particular device they're design for (to save space I guess). I have a Banana Pi M1 Chineese single board computer that runs Android 4.2. When I try to connect an Edimax wifi dongle to it or other generic Bluethooth dongle they don´t work. Does it make sense trying to look for drivers for these devices or is it worthless because if they existed they would already be installed there? This leads me to a broader question. Is it possible to manually install drivers in Android OS or this isn't supported as in for instance Windows or Linux OS?


Proving that a finite simple group (order < 100) is either abelian or has order 60

As the title suggests, I'm asked to      Prove that a finite simple group $G$ of order less than $100$ is either abelian or has order $60.$   I approached the problem by saying that $G$ could either have a prime order or a non-prime order and have already proven that, if $G$ has order prime, it has to be abelian.  However, I'm stuck on what to do for the second case. I've seen examples online where they prove that the order of a finite simple nonabelian group $G$ is less than $60$, but how do I prove that there is no other order that $G$ can be if it is nonabelian that is between $61$ and $100?$


How to retrieve only  from whatever BibLatex reference

I'm building a bibliographic index card, like the ones used in old libraries. So, I have a "bib" file with only one entry (because I'll print one at a time - this will be my reading list). I have made everything. But I need to retrieve the BibTex <entry key>, whatever it is (book, thesis, whatever). My aim is to use this  to automatically generate a barcode at the top of my index card. Cool humm. ;) The problem is that I cannot figure out how to read this <entry key> and put it in a string variable, using \def\mystring{<entry key here>}. This is my index card now:


REST API page validation error for SharePoint app

I need to do insert operation to SharePoint list. Below is my code..  $.ajax({         url: appWebUrl + "/_api/SP.AppContextSite(@target)" + "/web/lists/getbytitle('NewList')/items?" + "@target='" + hostWebUrl + "'",         type: "POST",         data:  JSON.stringify({ '__metadata': { 'type': 'SP.Data.NewListListItem' },         'Title': "TitleVal", 'Name':"Satya"}),                headers: {              "accept": "application/json;odata=verbose",             "X-RequestDigest": $("#__REQUESTDIGEST").val(),             "content-Type": "application/json;odata=verbose" },         success: function (data) {             success(data);         },         error: function (xhr, status, error) {              console.log( " xhr.responseText: " + xhr.responseText + " //status: " + status + " //Error: "+error );             alert("error");         }     });   It throws error:     Microsoft.SharePoint.SPException","message":{"lang":"en-US","value":"The   security validation for this page is invalid and might be corrupted.   Please use your web browser's Back button to try your operation   again."


I'm no longer able to use Wifi on my lenovo thinkpad p1 after a recent update from Ubuntu (i think at least). And I'm desperately looking for some guidance if it's the chip or if it's a driver issue.   This is probably a duplicate of another question but all the other ones I've seen talk about either Realtek or a Qualcomm based wifi chip. Mine is the 9560 from Intel. And I'm seeing the following output within the script provided by:     And this is what i see when running dmesg | grep iwl  [    6.947040] iwlwifi 0000:00:14.3: enabling device (0000 -> 0002) [    7.022558] iwlwifi 0000:00:14.3: loaded firmware version 38.c0e03d94.0 op_mode iwlmvm [    7.077003] iwlwifi 0000:00:14.3: Detected Intel(R) Dual Band Wireless AC 9560, REV=0x318 [    7.319388] iwlwifi 0000:00:14.3: Microcode SW error detected. Restarting 0x0. [    7.319393] iwlwifi 0000:00:14.3: Not valid error log pointer 0x00000000 for Init uCode [    7.319451] iwlwifi 0000:00:14.3: SecBoot CPU1 Status: 0x3, CPU2 Status: 0x240f [    7.319455] iwlwifi 0000:00:14.3: Failed to start INIT ucode: -5 [    7.333073] iwlwifi 0000:00:14.3: Failed to run INIT ucode: -5   And some additional information provided by lspci -v | grep Network  00:14.3 Network controller: Intel Corporation Wireless-AC 9560 [Jefferson Peak] (rev 10) 0a:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network Connection (rev 03)


The Decision  I have refused your application for a visit visa because I am not satisfied that you meet the requirements of paragraph(s) V 4.2-10 of Appendix V because:  I am aware that you were previously refused entry clearance. I have studied your previous application in addition to the information provided today. When assessing your application on the whole, I am not satisfied that you have met the requirements of the Immigration Rules on this occasion.  Although I note your sponsor states an intention to fund your trip I must also take into account the stated reason for your trip and your personal situation.   You claim to be employed and propose to stay in the UK for 10 weeks whilst undertaking a PLAB Test. Although you have submitted a letter from your employer purporting to give you leave for 10 weeks no credible explanation has been provided as to why they would grant you 10 weeks leave of absence. Furthermore I note you have only worked for your employer since March 2019. Given the short period of your employment I am not satisfied that you would have accrued 10 weeks of holiday time. Furthermore you have not provided a satisfactory explanation why you would seek to spend 10 weeks in the UK in order to undertake a short test. Because of this, I am not satisfied that you are seeking entry just as a visitor for the length of time you say. Therefore I am not satisfied that you are genuinely seeking entry as a visitor for a period not exceeding 6 months or that you intend to leave the United Kingdom at the end of the period as stated by you. This also leads me to doubt the purpose of your application as stated.   You state that you have worked as an ICU Medical Officer since March 2019 and that you have a current monthly income of 50000 NPR (£330) from all sources. You state you have personal savings of £2194 in support of your application. On the basis of the information and documents provided you appear to have no dependant relatives and little in the way of personal income or assets in your own country. In light of all the above I consider that you have failed to show sufficiently strong family, social or economic connections to your country of residence to satisfy me, on the balance of probabilities, that you intend to leave the United Kingdom on completion of a short visit.  For the reasons stated above I am not satisfied on a balance of probabilities that you are genuinely seeking entry as a general visitor for a limited period as stated by you, not exceeding 6 months; and I am not satisfied that you intend to leave the UK at the end of the period of visit as stated by you as  Please suggest me, for my next visa applications.


When I try to install upstart on Debian 9, I get :  # apt-get install upstart Reading package lists... Done Building dependency tree        Reading state information... Done Package upstart is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source However the following packages replace it:   systemd-sysv sysvinit-core  E: Package 'upstart' has no installation candidate    states that:     Installation is quite simple. The only package necessary is upstart.   My sources list:  ###### Debian Main Repos deb http://deb.debian.org/debian/ stable main contrib non-free deb-src http://deb.debian.org/debian/ stable main contrib non-free  deb http://deb.debian.org/debian/ stable-updates main contrib non-free deb-src http://deb.debian.org/debian/ stable-updates main contrib non-free   How can I fix this error and install upstart?


What is the explanation of taking $dx$ to right hand side if $\frac{d}{dx}$ is an operator?

Say we have $\frac{dy}{dx}=e^x$, then it is solved by taking $dx$ to right hand side of the equation and integrated.  My question is if $\frac{d}{dx}$ is an operator, then how do can take $dx$ to right? What is the explanation and reason behind this mathematically and intuitively?


Should I mention at my PhD interview that I already got an offer from a first university?

I have received a PhD offer from University A, but I'm also considering other programmes (say C and D), for which I will interview soon.   I was wondering: should I mention during my interviews with C and D that I received an offer from A? What effect would this information have on my interview? Positive ("university A accepted him, so he should be a strong candidate"), or negative?  And let's say the answer is that I should not mention it, what if they directly ask me which other programmes I am applying to?


I have a SSD 120GB and it's running ubuntu 20.04. I want to partition this disk for install windows 10. I tried use GParted to resize but it isn't apply. And i tried to unmount and output is:   could not unmount /deb/nvme0n1p4 unmount/: target is busy   Thank for all!!!


Orthographic view with something like shift/transformation?

Is it possible to make something like in the picture below in Blender? I mean ortographic view with like back planes moved along one axis but without modyfying mesh. Is there a camera option for it? Is it even possible?


Computing Class Group of $\mathbb{R}[x, y] / \langle x^2+y^2 -1 \rangle$

$ \mathbb{R}[x, y] / \langle  x^2+y^2 -1 \rangle$ is a Dedekind domain. How to compute its ideal class group? Any idea.


Assume I have a struct Point with public int's x and y. I want to change a value and I can. But once I store it in a dictionary, I can no longer do so. Why?  MWE:  using System; using System.Collections.Generic;  public class Program {     public struct Point     {         public int x, y;          public Point(int p1, int p2)         {             x = p1;             y = p2;         }     }      public static void PrintPoint(Point p)     {         Console.WriteLine(String.Format("{{x: {0}, y: {1}}}", p.x, p.y));     }      public static void Main()     {         var c = new Point(5, 6);         PrintPoint(c);                                          // {x: 5, y: 6}          c.x = 4;  // this works         PrintPoint(c);                                          // {x: 4, y: 6}          var d = new Dictionary<string, Point>()          {             { "a", new Point(10, 20) },             { "b", new Point(30, 40) }         };          foreach (Point p in d.Values)         {             PrintPoint(p);  // this works         }          PrintPoint(d["a"]); // this works                       // {x: 10, y: 20}          Console.WriteLine(d["a"].x.ToString());  // this works  // 10          // d["a"].x = 2; // why doesn't this work?     } }   How come I can access the struct variables when it's in a dictionary but can no longer change them? How do I change them?


Can we say anything about the set of all points of discontinuities of $f^{(1)}$,the derivative of a differentiable function on $\mathbb R$.

We all know that for a differentiable function $f$ on $\mathbb R$,its derivative function can have only essential or $2$nd kind discontinuity.Now my question is if $X$ be that set of all points of discontinuities of the derivative function,then can we predict the nature of $X$,i.e.can we say anything about the structure of $X\subset \mathbb R$.


Error: "dpkg was interrupted, you must manually run 'sudo dpkg --configure -a' to correct the problem"

I think I used  something  involving dpkg  but  I am  not  able  to recall what. After  that when I  need to    do   some   sudo-apt   get  or  even sudo-apt get  update  I am facing  the  following   issue:  dpkg was interrupted, you must manually run      sudo dpkg --configure -a  to correct the problem.   Any clue what is  wrong and how   can I  fix  this?


Navigation page buttons are orange everywhere

On a similar note to this question:  (which only covers two examples only on the profile page, this question mentions more places on and outside the profile page where this bug occurs).  I've noticed that whenever there are these page buttons now, for example, the profile page, /questions and tag pages they are orange.  Per the other post I'm assuming this is a bug but if it was intentional then this is a feature request to make them theme-able per site again.


I am running Ubuntu 16.04 on my windows pc using Oracle VirtualBox.   I've recently tried installing Octave on my Ubuntu platform, but after a few steps it is showing some error saying unable to fetch archives.   What should I do? I've posted the image here.


Question tag score and suggesting tag synonyms?

On the , in order to be able to propose a tag synonym you need:     more than 2500 reputation and a total answer score of 5 or more on the tag   What about people with a high question score on a tag, shouldn't we be able to suggest them to? For the tag I was planning to suggest a synonym for, I currently have a total question score of 17, but I'm not allowed to suggest them as I've not got the answer score. Would it not make sense to say require an answer score of 5, or a question score of perhaps 10? (Or maybe even 5, but given that question score doesn't currently count perhaps the bar needs to be set higher)


How to model the energy (heat) dissipating from a power resistor?

The issue I'm currently struggling with is: What is the mathematical relationship between power dissipation and temperature in a resistor?    The project I'm working on is a controller card for a [supercapacitor w/ resistive precharge] in a box.         – Schematic created using   The resistance and capacitance are known parameters of the system and the voltages are measured.  With this information I can calculate the amount of energy I'm getting ready to dump into the resistors and then decide if I have the thermal overhead to complete that charge cycle:     if(Predicted_Energy < MAX_ENERGY - Current_Energy)   {      charge=1;      Current_Energy += Predicted_Energy;   }     Once I finish charging and switch to RUN mode, those resistors are cut out of the circuit.  Now they're just sitting there cooling off... dissipating energy.  How can I take this cooling over time into account with my Current_Energy value?  Is it possible to estimate or assume how much energy is lost given time only? Or would I need to monitor the temperature of the resistor to determine this?


I have a series (in reality I have several series) of 1s and 0s (success and failures) and an "estimated" success-probability as well as the actual success-rate (I can count the 1s in my set).  I want to see if there is any correlation between if the previous outcome was a success and the success of the next outcome (also if the outcome have any affect on the outcome of the lets say next 3 outcomes).  I've tried asking multiple times here but it seems I am asking the wrong question because no one is answering me but instead tells me to "look at research" or that "I am just stupid".  Please, anyone have any ideas how I would go about finding any dependence between the outcomes?  Any ideas are welcome but no "This is a well studied subject please read this" as I have most likely all ready read it and still cant understand how to go about it.  Ive looked into auto-correlation but honestly cant grasp how to apply it to my problem.  Thank you in advance


Where does the saying "made from scratch" originate?

I've heard the saying "made from scratch" many times in my life from living in the southern part of the United States. What is scratch in this context and how did this saying come about?


I want to perform a very simple linear regression in R. The formula is as simple as $y = ax + b$. However I would like the slope ($a$) to be inside an interval, let's say, between 1.4 and 1.6.  How can this be done?


The number $2^{3^n}+1$ is divisible by $3^{n+1}$ and is not divisible by $3^{n+2}$.

Old question:  However, I don't understand the answer from the question. I know how to prove why it is divisible by $3^{n+1}$, but not divisible by $3^{n+2}$. Prove it is divisible: . Can someone please show me step by step how to prove is not divisible?


I'm working on a program which is required to use a pointer to pointer type of variable. I'm getting some error-messages from Visual Studio that I can't interpret and need help to figure out.  I have the following classes:  (Filename: Yatzee.h) #pragma once #include <string> #include <iostream> #include "ProtocolColumn.h"  using namespace std;  class Yatzee { public:     Yatzee();     Yatzee(int nrOfPlayer);     ~Yatzee();     void addPlayer(string name);   private:     string name;     int nrOfPlayers;     ProtocolColumn **ptr;     void initiate();     void free();  };  (Filename Yatzee.cpp) #include "Yatzee.h" Yatzee::Yatzee() {     this->nrOfPlayers = 1;     this->ptr = new ProtocolColumn*[1];     this->initiate(); }  Yatzee::Yatzee(int nrOfPlayers) {     this->nrOfPlayers = nrOfPlayers;     this->ptr = new ProtocolColumn*[this->nrOfPlayers];     this->initiate(); }  void Yatzee::initiate() {     for (int i = 0; i < this->nrOfPlayers; i++)     {         this->ptr[i] = nullptr;     } }  void Yatzee::free() {     for (int i = 0; i < this->nrOfPlayers; i++)     {         delete this->ptr[i];     }      delete[] this->ptr; }  Yatzee::~Yatzee() {     this->free(); }  (Filename: ProtocolColumn.h) #pragma once #include <string> #include <sstream>  using namespace std;  class ProtocolColumn { public:     ProtocolColumn();     ProtocolColumn(string name);     ~ProtocolColumn();      bool addResult(int diceValue, int result);     string getPlayerName()const;     int getSum()const;     bool isFilled()const;     string toString()const;  private:     string name;     int sum;     int *resultDice;     bool *visited;     void initiateProtocol();  };   (Filename: ProtocolColumn.cpp) #include "ProtocolColumn.h" ProtocolColumn::ProtocolColumn() {     this->name = "Joe Doe";     this-> sum = 0;     this->initiateProtocol(); }  ProtocolColumn::ProtocolColumn(string name) {     this->name = name;     this->sum = 0;     this->initiateProtocol(); }  ProtocolColumn::~ProtocolColumn() {  }  //Initiate array for the protocol void ProtocolColumn::initiateProtocol() {     this->resultDice = new int[6];     this->visited = new bool[6];      for (int i = 0; i < 6; i++)     {         resultDice[i] = 0;         visited[i] = false;     } }  bool ProtocolColumn::addResult(int diceValue, int result) {        bool res = false;     if (diceValue < 7 && diceValue > 0 && visited[diceValue-1] == false)     {         this->resultDice[diceValue-1] = result;         this->visited[diceValue - 1] = true;         this->sum += result;         res = true;     }     return res; }  string ProtocolColumn::getPlayerName() const {     return this->name; }  int ProtocolColumn::getSum() const {     return this->sum; }  bool ProtocolColumn::isFilled() const {     bool isAllFilled = false;      for (int i = 0; i < sizeof(visited); i++)     {         if (visited[i]==true)         {             isAllFilled = true;         }         else         {             isAllFilled = false;         }     }      return isAllFilled;  }  string ProtocolColumn::toString() const {     stringstream ss;     ss << this->getPlayerName() + "\n";     for (int i = 0; i < 6; i++)     {         ss << i+1 << "\t :  " << this->resultDice[i] << endl;     }     ss << "--------------------\n";     ss << "SUM =       " << this->getSum() << endl;      return ss.str(); }   Every function here is not complete. But my problems lies in the pointer in the Yatzee.h file called ProtocolColumn **ptr. When I try to initiate it in the constructor I get these error codes from Visual Studio:   C2143 - Syntax error missin ";" before'*' C4430 - Missing type specifier - int assumed  C2238 - Unspecified token(s) preceding ';'   All errors is in the Yatzee.h file and I can understand why I get them. I'm just trying to initiate my **pointer so that I can point to a ProtocolColumn object also.


I have an old refrigerator that I use as a fermentation chamber for my beer. It can hold two fermentation buckets. It is connected to a STC-1000 temperature controller so it keeps the temperature stable.  Currently I have two buckets in it (an american pale ale and a classic english bitter). They have been in the refrigerator for about a week at 18 C (64.4 F), and I usually leave my beer in there for at least three weeks, with a slight temperature increase after one week and a cold crash during the last three days.  However, I just found out that I need to make two more batches that need to be ready in about four weeks (ales). That means I have to start brewing immediately. The best I can do without using the refrigerator is a dark closet that has a temperature at around 23 C (73.4 F), perhaps a bit colder at night.  So, my question is:  Should I move the beer in the refrigerator to the closet and use the refrigerator for the new brew, or should I leave it and ferment the new beer without any temperature control? I can't decide and I would like some opinions on this.  Thank you.


How can interstellar space have a temperature of 2-3K?

Several different sources online state that the average temperature of interstellar space (or the universe in general) is around 2-3K.  I learned that temperature is basically the wiggling of matter, and I find it somewhat counterintuitive that the wiggling of so few particles can cause a temperature of 2-3K. Is there a (order-of-magnitude) calculation which can show that this average temperature estimation is correct, using an estimation of the average density of interstellar space (or the universe in general)?


Mirror not work correctly for stl imported file

I have a troubleshoot with my blender file. I've upload a stl file in blender and when i apply a mirror modify to X axis i see 2 objects. I tried to change 3d cursor position, but not work.


The question asks "Is the set of all $3\times3$ real invertible matrices connected?"  My intuitive idea is that we can establish a separation consisting of matrices with positive and negative determinant respectively, whose union will be the whole set but with no intersections. However I am not sure how to show intersection of one set with the closure of the other set is empty, according to the definition of being disconnected. (My guess is that the closure for real matrices with negative determinant is just itself union matrices with 0 determinant)  So what will be a rigorous proof of this, using only tools in point-set topology and knowledge in linear algebra?   I know that $3\times3$ matrices can be viewed as homeomorphic to $\mathbb{R}^9$, but how do we define the topology on this subspace (i.e. set of all $3\times3$ matrices)? What will an open set look like in this topology?


I have purchased a domain and uploaded with HTML Page and When I search in Google it shows my website.  Now my question is   How Google will discover my new website? I have not used     sitemap,robot.txt and not included any kind Google plugin or     tools.    Question is already posted but there is no perfect answer for that question so I asked once again.


Diff Op-Amp in current measurement ignores input

I'm working on a small project which involves current measurement.  I'm using R10 to measure Voltage drop (100 mV) when 10 mA current goes through it.  Next I'm amplifing that signal around 37 times using an op-amp (LM358N) which is powered using 0-5 VDC and works as differential amplifier. There should be 3.73 V on the output BUT...  My problem is:  The op-amp is completely ignoring the inputs and it still outputs a value around VCC minus 1.2 V.  Making a symmetrical power supply does not help. I checked everything about 100 times and can't find any solution... If anybody of you know how to help me I'd be grateful.


What do I do if a sugar daddy who sent me money is asking for money back or threatening me with FBI asking he needs a $1000 to pay off his workers?

I’m confused on what to do. Recently, I was talking to a guy who came to me first on Snapchat wanting me to be his sugar baby and I agreed. Long story short, he told me he would be giving me an allowance of 5,000 and never did, but tried to send me money. I kind of felt off about the whole deal and told him I wasn’t interested anymore and kept begging me back. I didn’t care about his money to proceed, especially since I never met him, so he apparently sent 1000 to me. I called him on FaceTime to see him in person and he turned out to be someone else, the guy looked like he was from Africa. I was like "WTF?" and he keeps trying to claim it was his chef who answered? That doesn’t make any sense so I blocked him. He keeps trying to contact me and threatening me he wants 1000 as he has to pay off his workers who pissed him off. They’re trying to threaten me with the FBI because I won’t send their 1000 back. If he was a sugar daddy, he should have enough money to pay them off, not ask me for the money. I’ve FaceTimed him but he won’t answer, claiming he’s working and can’t answer. Yet, he has the time to text me. I find this bullshit, but I need to know — is this legit or bullshit?


$C^{1}[0,1]$ is not Banach under $\|\cdot\|_{\infty}$

This is a curiosity from a reading a text that offered no proof. Why is $(C^{1}[0,1], \|\cdot\|_{\infty})$ not Banach?


I have come across the following comment in the lecture:  If for a prime $q$ holds $q \equiv 5 \pmod 8$, then $q-2$ has a prime factor $p$ with $p \equiv 3 \pmod 8$ or $p \equiv 5 \pmod 8$.  I do not see why this is true. I attempted to prove it by rewriting $q-2$ as $q-2 = 8k+3$ for some integer $k$ and tried to see what happens when I divide it by an arbitrary prime. However, this did not help. Could you please give me a hint?


How is the    $$ i\hbar\frac {\partial }{\partial t}\psi=H{\psi }$$  derived?


Definitions of relativistic kinetic energy and momentum

I can not solve this "loop" in my learning: Relativistic kinetic energy is usually defined as (see by example ): $$ T = \int \mathbf{v} d \mathbf{p} = \int \mathbf{v} d(\gamma m \mathbf{v}) = (\gamma-1) m c^2 $$ where $\mathbf{p} = \gamma m \mathbf{v}$ is used as premise. (Four) momentum is defined as: a) from mass multiplied by position derivative respect to proper time (something usually deprecated due to the mix of reference frames for $\mathbf{x}$ and $\tau$): $$\mathbf{p}=m\frac{d\mathbf{x}}{d\tau}=m\frac{d\mathbf{x}}{dt}\frac{dt}{d\tau}=m\mathbf{v}\gamma$$. b) from action related to Lagrangian of the free particle (see ): $$ \mathbf{p} = \frac{\partial S}{\partial \mathbf{q}} = \frac{ \partial L}{\partial \dot{\mathbf{q}}} $$ where $ S=\int L dt $ and the Lagrangian $ L = - \frac{ 1 }{\gamma} m c^2 $ is obtained from the total energy $E=\gamma m c^2$ and: b1)  total energy from kinetic (loop!) $T=(\gamma-1)mc^2$ plus rest energy $mc^2$ or, b2) from energy-momentum relation $E^2 = p^2c^2+m^2c^4 $ and energy-momentum relation (see ) from four-momentum norm (loop!). I can not find a linear (non-circular) sequence of definitions that allows me to define and evaluate (four) momentum and kinetic energy in relativistic context.


In Harry Potter, there is a lot of talk of "Dark Magic", "Dark Witches," and "Dark Wizards". But are they evil?  I know that if you're an evil sod, then you're more likely to take any advantage you can get and go right for the kill. But is there any reasoning behind "dark magic" being considered "dark" other than being unsportsmanlike, for lack of a better word?  A lot of stories and games have a trend of an evil act or spell being undeniably and even quantifiable evil, Evil is a force in the world that one can measure and detect. Does the HP universe have any such reasoning behind it's "dark side" beyond being the easy path?


“it's truly vital that he or she becomes/become familiar with the reasons”?

Please have a look at the sentence below:     Before one votes on the propositions, it's truly vital that he or she becomes familiar with the reasons for voting both for the proposition and against the proposition.*   My book says, become familiar… proposal. That is, becomes should be become. Is there a grammatical difference? Is one more correct than the other?


Calculating length contraction at speed $c$ (not near it)

Is the Lorentz transform applicable to speeds that are lower than light only?Because I'm trying to calculate length contraction of objects moving at speed $c$ (not near it) and it turns always 0. Is my calculation correct?Please help I'm just a beginner  Suppose a 5 m object is traveling at $c$,so $$        x'=x/γ$$  \begin{align} x&=x'\sqrt{(1- (v^2)⁄(c^2)}\\ x&=5\sqrt{1-1}\\ x&=5\sqrt0\\ x&=0 \end{align} Not infinite right? If so then the rule will have no length?


What are the effects of a complex refractive index?

An ideal lens in geometrical optics will have a refractive index $n$. However, other materials can have  $n^{\prime}=n+i k$. What are the physical effects of the complex part of the refractive index? Would it result in a shifting of the focal length? Would it attenuate the light passing through the lens?


Riesz representation and vector-valued functions

A version of the Riesz Representation Theorem says that a continuous linear functional on the space of continuous real-valued mappings on a compact metric space, $C(X)$, can be identified with a signed Borel measure on the set $X$. Are there any similar results when we replace $C(X)$ by the space of continuous functions of $X$ (compact metric) into $Y$ when (1) $Y=R^N$ or in general (2) $Y$ is a Banach space? I suspect the answer is yes, but I would like to find the right reference to start looking at. Thanks.


HP laserjet m1132 MFP does not work on ubuntu

I am having problems with LaserJet m1132 MFP working on Ubuntu 16.04 - the system does not recognize the printer.   I am totally new to Linux in general, so hope someone can help me with this issue.   From what I have gathered hplip connects to hplipopensource.com/ which no longer operates, so I am completely lost from where I could get them elsewhere.


Showing that $\mathbb{Q}[\sqrt{2}, \sqrt{3}]$ contains multiplicative inverses

Why must $\mathbb{Q}[\sqrt{2}, \sqrt{3}]$ -- the set of all polynomials in $\sqrt{2}$ and $\sqrt{3}$ with rational coefficients  -- contain multiplicative inverses?   I have gathered that every element of $\mathbb{Q}[\sqrt{2}, \sqrt{3}]$ takes form $a + b\sqrt{2} + c\sqrt{3} + d\sqrt{2}\sqrt{3}$ for some $a,b,c,d \in \mathbb{Q}$, and I have shown that $\mathbb{Q}[\sqrt{2}]$ and $\mathbb{Q}[\sqrt{3}]$ are both fields, but it's not clear to me why this allows for general multiplicative inverses to exist in $\mathbb{Q}[\sqrt{2}, \sqrt{3}]$.


Previous posts                  As of today, the Moderator Flag Dashboard is officially graduated and the old version sent to the smelter's yard.  Based on stats from the past month, virtually all moderators were already on the new UI (thank you) so you hopefully won't notice any change.  That said, I would like to highlight the handful of improvements we made over the last month and a half based on your feedback:   A more responsive navigation bar at the top of moderator pages, improving the mobile experience. Similarly, , increasing room on the screen for the first question. . .  Not only do the headers look better, they now function better.  Now you scroll to and highlight the post/comment each time you click the link, not just the first time. .  Posts by the same user are grouped together and ordered newest first. .  We eliminated the VLQ (auto) side effect so now "Resolve all flags (auto)" doesn't do anything surprising.  If you still want to leave a comment or decline, you can do so with the buttons next to the individual flags.   Bugs and Feature Requests  Since this project is officially launched, all bugs and feature requests should be done in the form of questions tagged  on MSE, not answers on this post.  Feel free to post an answer here if you have specific concerns about the release process.


There is a way to know how many partitions has a number?

The title says it all, there is a way to know how many partitions has a number? With "a way" i mean if there is any formula or polynomials to provide the number of ways to "part" a number. The question arose up after i answer the query "What are the partitions of 5?" I found seven, in fact is seven, but i would appreciate a double check


Can't use the computer - all input I type is repeated

For some reason when I try and use the developer's computer to make cheats it also gets triple the input. So hhh instead of just h. completely unusable. I'm using firefox and tried it in internet explorer but that still gets 2 inputs. Gah I'm going crazy.


How do I reinstall all Windows modern app completely from ISO?

Long story short, I ended up deleting some of the files from C:\Windows\InfusedApps\ and C:\Program Files\WindowsApps.   Now I am hoping if there is a way to completely reinstall all the apps from the Windows ISO.  I know there is an option to "Reset your PC". But I want to avoid that and reinstall only the modern apps


What is the correct way to run a command after boot on ubuntu 18.04?

I need to run a simple batch of commands after the computer boots, something like sudo thing sudo thing1 -p  But for the life of me I can't figure out how. I googled and googled and I kept finding the same thing: Place the commands into a /etc/rc.local or /etc/init.d/rc.local file. The problem is that none of those files exist on my system! Furthermore, I have read that /etc/rc.local is deprecated anyway, so what the correct and simple way to do this? I would like to know how to these two things:  run a command after the computer boots  run a command after specified user logs in, and run it as the given user (And make all that happen solely by editing stuff in the terminal, no GUI tools)   Thank you.


Animated movie where young boy is transported to another world and travels with a burly warrior and a owl like wise man

I literally don't remember anything about this except a specific scene where the wise companion keeps correctly guessing how many fingers the protagonist has behind his back.


Rewarding an existing answer which has not been accepted but already rewarded by others

I want to reward  on StackOverflow with at least 50 points of my rep, however, the answer is not the accepted answer and it has already been rewarded by "Community" - so I'm not quite sure if it is possible for me to do this?  If I choose:   Start a Bounty Selects 50 points of my rep. Selects Reward existing answer   ... then I'm presented with this dialog:    At this point, I'm not quite sure what will happen if I press "Start Bounty" - will my reward go to the accepted answer right away? Or will it be possible for me to choose which answer to reward?  I'm asking because I won't risk my reward automatically goes to other than the previous mentioned answer.  Thanks.


Change the color of Lightning-Output-Field

<lightning-output-field variant="label-hidden" field-name="Company__c">                             </lightning-output-field>   it showing black i want to change the color of my output how i can achieve this


Is it okay if a professor friends a student on social media sites?

If a professor is teaching a student currently, is it okay if he/she friends the student on social media sites such as Facebook or Google Plus?


Include section in ToC of viewers, but not actually visible in document

I'm writing my thesis, and there are two sections that I do not wish to include in my table of contents: the abstract and the acknowledgements. Of course, LaTeX makes all the right choices for me, so that works out of the box.  However, several PDF viewers render a table of contents outside the document that allows for easy navigation while you're reading it. By default, this seems to be taking the table of contents from the document verbatim, and it works quite nicely. It would seem appropriate to include my abstract and acknowledgements in this list, though, for completeness..  Is there a way to do that? Or is this list really an exact copy of what I'm including in my LaTeX table of contents?


What is a word for "the desire to be considered a victim"?

I'm wondering about this in relation to the notion of a "culture of victimization", when people want to garner sympathy and/or discharge their guilt by being considered victims.  The phrase "culture of victimization" refers to the situation of many people having that desire and not to the desire itself. "Masochism" is close I suppose, but somehow not quite right.