Permissions for SSIS/SQL Server agent jobs for multiple user groups

What permissions should I use for Active Directory groups to be able to deploy and then run/schedule their own jobs only? For example, I have 3 folders in the Integration Services catalog. Dept_A, Dept_B, and Dept_C. Each AD group should be able to DEPLOY to their own department's folder, and also create/schedule/run jobs that call these packages. I can control the permissions for deployment to those 3 folders by folder/project permissions. However, when it comes to the SQL Server Agent, things don't seem fine-grained enough. There are database roles in msdb: SQLAgentOperatorRole, SQLAgentReaderRole, and SQLAgentUserRole. However, I'm not seeing how I can limit security to keep each AD group only able to run their own packages from a job.


I found a few of these walking in the middle of the night (about 3 AM) on a wall in my room near the floor. They are at most a few millimetres long (no more than 2 I would say). I am living in Poland, in a block of flats.  EDIT:  Since I first wrote, I have seen few more - very small - less then 1 millimetre long. They seemed to be coming from behind the baseboard. This time I've seen them during daytime.


Let $a\mid c$ and $b\mid c$ such that $\gcd(a,b)=1$, Show that $ab\mid c$

Let $a\mid c$ and $b\mid c$ such that greatest common divisor (gcd) $\gcd(a,b)=1$, Show that $ab\mid c$.


I just recently wished to get rid of one of my answers but could not find any way to delete it from within the Android app.  The only options I get in the menu are Edit, Flag and Share.


Show that $z= Ae^{it}+Be^{-it}$ is an ellipse

If $A$ and $B$ are complex parameters. Apparently the semi-axes should be |A| and |B|, and the orientation should be $\frac{1}{2}$arg(A)+arg(B). I rewrote the original expression as |A|$e^{at}$$e^{it}$+|B|$e^{bt}e^{-it}$ where a and b are the arguments of the parameters A and B. I then used Euler's formula and tried to rearrange using every trig formula I could find, to get the equation $z=e^{i\frac{a+b}{2}}(|A|cos(t)+i|B|sin(t))$ with no success...any help would be much appreciated!


When I get down-vote, is there any way to ask down-voter that why my post got that?

Whenever someone asks a question that's his/her working problem that he/she is unable to fix that bug that's why asked it here. Maybe that person is just beginner and our experts give down-vote to he/her without knowing what was wrong.  So my question is why system doesn't ask down-voter what's is wrong in this? So the person asking question can correct it next time.


Changes in meaning of "bad" and "bad ass"

How did the definition of bad change over time? When did it change to mean good?


Why does Monte-Carlo integration work better than naive numerical integration in high dimensions?

Can anyone explain simply why Monte-Carlo works better than naive Riemann integration in high dimensions? I do not understand how chosing randomly the points on which you evaluate the function can yield a more precise result than distributing these points evenly on the domain.  More precisely:  Let $f:[0,1]^d \to \mathbb{R}$ be a continuous bounded integrable function, with $d\geq3$. I want to compute $A=\int_{[0,1]^d} f(x)dx$ using $n$ points. Compare 2 simple methods.  The first method is the Riemann approach. Let $x_1, \dots, x_n$ be $n$ regularly spaced points in $[0,1]^d$ and $A_r=\frac{1}{n}\sum_{i=1}^n f(x_i)$. I have that $A_r \to A$ as $n\to\infty$. The error will be of order $O(\frac{1}{n^{1/d}})$.  The second method is the Monte-Carlo approach. Let $u_1, \dots, u_n$ be $n$ points chosen randomly but uniformly over $[0,1]^d$. Let $A_{mc}=\frac{1}{n}\sum_{i=1}^n f(u_i)$. The central limit theorem tells me that $A_{mc} \to A$ as $n\to \infty$ and that $A_{mc}-A$ will be in the limit a gaussian random variable centered on $0$ with variance $O(\frac{1}{n})$. So with a high probability the error will be smaller than $\frac{C}{\sqrt{n}}$ where $C$ does not depend (much?) on $d$.  An obvious problem with the Riemann approach is that if I want to increase the number of points while keeping a regular grid I have to go from $n=k^d$ to $n=(k+1)^d$ which adds a lots of points. I do not have this problem with Monte-Carlo.  But if the number of points is fixed at $n$, does Monte-Carlo really yield better results than Riemann? It seems true in most cases. But I do not understand how chosing the points randomly can be better. Does anybody have an intuitive explanation for this?


Getting my ShellScript to run a java file for a given amount of time

I'm trying to get my .sh file to run a Java program for a specific amount of time.     Here's my .sh file:  #Runs Java Repeatedly. #Reset directory cd #Go until src cd Desktop/Lin\ Lab/Java\ Workspace/SandBubbler/src/  for((i = 0; i < 10; i++)) do     java testerPackage.BubblerSimulation     #kill process after x amount of seconds. done   I'm new to Unix/Linux (I started learning it yesterday) so please explain it in a simple way. Thanks!


Prove that $T^2$ is the zero transformation if and only if $\mathrm{range}(T) \subseteq \ker(T)$.

$\newcommand{\range}{\mathrm{range}}$The full question: $T^2$ means the composition, i.e. $T(T(x))$ Let $V$ be a vector space and let $T: V \rightarrow V$ be linear.  Prove that $T^2$ is the zero transformation if and only if $\range(T) \subseteq \ker(T)$. So far I know that for ($\implies$).  Assume $T^2$ is the zero transformation.  Then $\ker(T^2)=\{0 \in V: T^2(v)=0\}$.  Note that this is $\forall v \in V$. We also know that the $\range(T)=\{0\in V: \exists v \in V: T^2(v)=0\}$. Not sure where to go from here.  Also for the other way, I don't know where to go.


check if environment variable is already set

I am writing a shell script, where I have to check if environment variable is set, if not set then I have to set it. Is there any way to check in shell script, whether an environment variable is already set or not ?


userXXXXXX showing instead of my full name

Why is user100380 showing up in my posts instead of my full name? This is happening on all the stack exchange sites to which I am posting.


Example: I have a two accounts, one main and one smaller. I create a great post on the mini, and want to move it to the main. Thus, my main can be attributed to the great post without merging the mini to the main.  Is it possible to move some posts (Q or A) from one user to another, without merging everything? (Obviously, with proof that both accounts have permitted this action)  If not, can this feature be considered?


I often use the \footnote command and most of the time, I am satisfied where the footnote mark and adjoined footnote appears at the bottom of the page. However, there are times when I would like to reposition where the footnote mark appears; for instance, to have it occur with no indentation (i.e., ``flushleft'') or to have it appear farther to the right than it is commonly placed. Is there are way to do this? Thank you.


Let $X_1, X_2,\cdots$ be an infinite sequence of sub-gaussian random variables which are not necessarily independent. Show that \begin{align*} \mathbb {E}\text{max}_{i}\frac {|X_i|}{\sqrt{1+\log i}}\leq CK, \end{align*} where $K=\text{max}_{i}\|X_i\|_{\psi_{2}}$. Deduce that for every $N\geq 2$ we have \begin{align*} \mathbb {E}\text{max}_{i\leq N}|X_i|\leq CK \sqrt{\log N}. \end{align*} This question is the Exercise 2.5.10 in , and has been asked twice, you can find them here: and . But I don't think the answer is satisfactory since it did not give $CK$ explicitly.


I decided it was time to investigate the corruption, but I can't break the corrupted rock (or whatever it is that looks like rock inside the corrupted area). My silver pickaxe or bombs simply don't do anything to it.  How can I break it?


Quick question regarding editing PostGIS data in ArcMap 10.0.  Far as I can tell, this can only be accomplished through third-party plugins like GISSquirrel or ST-Links.  Does anyone know of an alternative way that omits third-party involvement?  As an alternative, is it possible to edit remotely-hosted data served up in ArcGIS via a Geoserver WFS?  Again, the research I've done indicates you can view the data in ArcGIS, but no edit capabilities.   I have my data stored remotely in PostGIS and served through Geoserver.  Of course, I'm trying to find a way that allows editing of the data within the ArcGIS environment.  Well aware that I can do this in QGIS, just wondering why I can't find a solution for ArcGIS.


How do the consequences of Russell's paradox extend beyond universal comprehension principle as far as the set of all sets problem?

I think I understand the way in which Russell's paradox shows that the following principle is wrong:   " for every predicate, there is a set having as elements all the objects that satisfy this predicate"   Russell's picks up a predicate ( namely the predicate " x is not an element of itself" ) and shows that the corresponding " set" would have contradictory properties, which means that " the set of all x such that x is not an element of x" does not exist.   This counts as a counter example to the alledged " principle".   My understanding of Russell's paradox does not go further than this.   Now, if I am correct, it is often said that Russell showed, with this paradox, that the " set of all sets" does not exist.   What is actually the relation between Russell's paradox and the non-existence of the set of all sets?   It seems difficult to me to answer that the relation consists in the fact that precisely a set has the property of not belonging to itself. For it seems to me that Russell's paradox forbids  to define a set in this way.


Why would a JavaScript variable start with a dollar sign?

I quite often see JavaScript with variables that start with a dollar sign. When/why would you choose to prefix a variable in this way?  (I'm not asking about $('p.foo') syntax that you see in jQuery and others, but normal variables like $name and $order)


Let (X, d) be a metric space and let A be a subset of X and O be an open subset of X. Prove that $O \cap \overline{A} \subseteq \overline{O\cap A}$

I don't know how to use the fact that O is open. Its interior must be itself, so I guess I should take the complement of the sets in question. But I'm not sure how to proceed.


App store update page doesn't seem to be loading properly on Mac OS El Capitan 10.11.6

Basically the "updates page" loads in a non rich html format, and if theres an update it's missing the tabs on the update page as well.  I can't figure out if this is just because apple may have stopped supporting El Capitan or if I have something else going on.  Any help would be appreciated.  I've trashed the caches in library and the user profile. But this page is the only one that still loads like this (see pic below) on my app store.


Can't upvote either questions or answers, though I'm only at 34 today

I am stuck at 34 votes on MathOverflow. Some previous answers like  say that this is because the 40 votes should be 30 for answers, 10 for questions. But, it seems different in my case as I get the error popup whether I'm voting on answers or on questions. So I can't get closer to 40 votes by just voting on questions.      Both screenshots are from within a window of 1 or 2 minutes.


Update from 14.04.2 to 14.04.3 not happening

I have Ubuntu version 14.04.2 installed and want to upgrade to 14.04.3 (Kernel 3.19 has few fixes for me)  When I do  cat /etc/lsb-release   I get  DISTRIB_ID=Ubuntu DISTRIB_RELEASE=14.04 DISTRIB_CODENAME=trusty DISTRIB_DESCRIPTION="Ubuntu 14.04.3 LTS"   But I still have 3.16 Kernel, I never got any message about upgrade and when I do   do-release-upgrade   (either with -d or -p) I get  Checking for a new Ubuntu release No new release found   I tried to reboot, for the case that I missed the upgrade, but nothing  I also have set  Prompt=lts   in  /etc/update-manager/release-upgrades   How can I get the upgrade?  Thanks ^^


Unsure whether to use "enquire" or "inquire"

I have read the post . It was illuminating, but I am unsure which version to use. I am an American, but am writing to a woman in England. It is a formal business letter, and the context is: "I am writing to enquire..." Is this appropriate, as I believe it fits the criteria mentioned in the other post, or should I use inquire?


The computer I'm trying to install on has NO other os on it. After seeing the screen that asks if I want to  Try ubuntu without installing Install ubuntu Check disk for defects Test memory Boot from first hard disk   I select install Ubuntu and it takes me to the normal black screen BUT mine gets stuck on it and never continues the boot.   After this I tried using a USB that I created with netbooter or something, after clicking install Ubuntu it says binary white listed and doesn't work.


Suppose $f(z)$ is analytic in a neighborhood of  the origin and $\sum_{i=1}^\infty f^{(n)}(0)$ converges. Prove that $f(z)$ extends to be an entire function. From the given information I can guess that $f$ has a Taylor extension in the neighborhood of $0$, but how can we say that it is expandable to an entire function? Please tell me how can we prove that $f$ is entire. AS  the answers to this question does not provide me satisfactory answer


I am using a mac terminal (.command) file to launch a Python program.  My question is, how can I find the location of the .command file when I am inside of the .command file.   Thank you.


What’s the point in having “www” in a URL?

Other than for historical reasons, is there is reason to have “www” in a URL?  Should I create a permanent redirect from www.xyz.com to xyz.com, or from xyz.com to www.xyz.com? Which one would you suggest and why?


How would the airline carrier compensate if the change in flight schedule breaks my entire itinerary?

I planned a trip to Europe this December and booked the flights quite in advance. A few days ago they sent an email informing me that a flight has been cancelled and they offered a different flight or refund of the booking amount. However there are several other booked flights (with different carriers) and hotel bookings which would suffer because of this change.  Here's my itinerary:-   Delhi (DEL) to Milan (MXP), Air Italy, dep. Sunday, 6am India time Milan (MXP) to Rome (FCO), Air Italy, dep. Sunday 12.45pm Italy time Rome (CIA) to Athens (ATH), Ryanair, dep. Monday, 10am Italy time   Return:   Athens (ATH) to Rome(CIA), Ryanair, Thursday Rome (FCO) to Milan (MXP), Air Italy, dep Friday, 9.40am Italy time Milan (MXP) to Delhi (DEL), Air Italy, dep Friday, 4pm Italy time Delhi (DEL) to Hyderabad (HYD), Indigo, dep Sunday   Of course the onward and return journey is separated by a few weeks. Not mentioning the dates due to privacy reasons.  They informed about two cancellations: Delhi to Milan (onward - Sunday) and  Milan to Delhi (return Friday)  However they offer these flights on different days which totally break my itinerary which might cause me missing the connections of good amount of money to get other flights rescheduled.   I tried to communicate with them but   Sent messages on whatsapp but I'm not receiving response after one reply Sent a couple of email on separate days but didn't get a reply Couldn't get connected on Phone.   It is causing a lot of stress.   What can I do about it?  I'd like to know what are my rights regarding how airlines is bound to (1) attend to customer communications, (2) offer multiple alternatives which do not break the itinerary, and (3) offer additional compensation for additional costs involved (hotels, other flights re-schdeuled).


New messages flagged blue bubble does not go away

When someone flags a message in chat all 10k+ users in chat get a little blue bubble to vote on. It shows up in the upper left hand corner of your gravatar (which is in the bottom left of the page).  When someone flags a message and it shows up, if I wait for a second to click on it, and then click on it, and it has already been handled, it shows the message  "There are no flags to display."  In the past, after showing this message, the blue (1) would disappear. However, lately it has not been going away and requires a page refresh in order to remove. Can this be fixed?  This issue is addressed here:  from September 12th 2012. But since it is still occurring 10 months later, I believe the cause is different.


Valuation of a sum of elements strengthened

In the definition of valuation I have, the axioms are:  $val: K \rightarrow \mathbb{R} \cup \infty$, $K$ is a field  $val(a) = \infty \Leftrightarrow a = 0$  $val(ab) = val(a) + val(b)$  $val(a+b) \geq min(val(a), val(b))$  In other texts, I have seen a strengthening of the second rule  $val(a) \neq val(b) \Rightarrow val(a+b) = min(val(a), val(b))$  I'm struggling to prove this from my axioms, any hints will be greatly appreciated


Is there any way I can open Sentinel 2 JPEG2000 file (.jp2) using R? Or more specifically with the {raster} package in R?  I keep getting the Error message that .jp2 is:     not recognised as a supported file format.   Do you know if this file format will be added to the raster package any time soon, or how to open it in R without converting it to .tif first?


So how DID the sword of Gryffindor get in the pool?

In book seven, Harry and Hermione Apparate to the Forest of Dean, where Snape's Patronus leads Harry to the sword in a pool of ice. But how did it get there? Did Dumbledore put it there expecting Harry to find it? If so, how did Snape know Harry was in the forest? If not, did Snape put in the pool for Harry to find? Was he trying to find out where Harry was so he could lead him to the sword?  What exactly happened?


Nth term of recursively defined sequence

I have the following sequence defined recursively: $s_{n+1}=1+\frac{s_{n}}{2}$. I understand that the nth term of this sequence is given by $f(n)=2-(2-t)2^{1-n}$. However, I am not sure how this conclusion is reached (in particular, how this general term is derived from the recursive definition). Could someone provide a hint (if not demonstrate) how this is done? Thank you.


Last activity name still missing from migrated question

According to this post  this should be fixed. But it happened again.  See Image below (link to )  There was also another migrated question () in the list where the name was missing, but it was edited on meta.


Lately, I am doing an investigation on Stirling's formula and its applications. So I thought I could use it to prove that the mode of the Poisson model is approximately equal to the mean. Of course, you do that by considering the curve that is formed by connecting the points of the probabilities of occurrence and the different values of the discrete random variable. Then you differentiate the p.d.f. where for $x!$ you use Stirling's formula $x!\approx \sqrt{2\pi x}~x^xe^{-x}$. The result is $\lnλ-1/(2x)-\ln x$ whose roots cannot be found analytically, but by iterative methods we find that as λ is larger and larger, the mode~mean.   Problem is, I found the following paper online, which seems to be the solution from a Harvard's undergraduate problem set.     It reads "You can also show this by taking the derivative of eq. (2), with Stirling’s expression in place of the $x!$. Furthermore, you can show that $x = a[=λ ~\text{in my case}~]-1/2$ leads to a maximum $P(x)$ value of $P_\max\approx1/\sqrt{2\pi a}$."   Does this puzzle you as much as it puzzles me? My main concern is over the "=" sign: how does this hold? The derivative=0 equation cannot have such an exact solution. Furthermore at such x, how does $P(X=a-1/2)$ give $1/\sqrt{2\pi a}$?  Am I (and my professor) missing something rather obvious or is the solution wrong?  Discuss!  PS: This sort of question might have been asked before, but still, I am really curious that somebody reads the paper in the link above, so that I can figure out what's going on.


How to get this percentage to not be 36.36363636363637% but rather 36.36%

I am having a hard time with a homework problem getting my program to output a percentage properly. My goal is to just have my percentages be two decimal places out, even if it is  0.00%. Keep in mind, this is a level one programming course so the solution should be fairly basic, I just don't know why I can't see it. Thank you for your help.  I get these outputs:  supposed to be > 7 evens (100.00%) mine > 7 evens (100.0%)  supposed to be > 4 evens (36.36%) mine > 4 evens (36.36363636363637%)  Below is my code:  while(input.hasNextInt()) {        int num = input.nextInt();     totalcount++;     totalsum = totalsum + num;      if(num % 2 == 0) {          totaleven++;      }  }  double percent = (((double)totaleven/totalcount) * 100.00); <<< this right here System.out.println(totalcount + " numbers, sum = " + totalsum); System.out.println(totaleven + " evens " + "("+percent+"%)");   }


Conditional expectation $E[\log(1+X) \mid X>t]$

I am wondering if the following expectation can be computed in the shown manner  $$\begin{aligned} E[\log_2(1+X) \mid X>a] &= \int_{0}^{\infty} P( \log_2(1+X)>t \mid X>a) dt \\ &= \int_{0}^{\infty} P(X>2^t-1 \mid X>a) dt \\  &= \int_{0}^{\infty} \frac{P(X>2^t-1 \cap X>a)}{P(X>a)} dt \\ &= \frac{1}{P(X>a)} \left(\int_{0}^{a} P(X>a) dt + \int_a^{\infty} P(X>2^{t}-1) dt \right)  \end{aligned}$$  Note that there is no closed form expression for the PDF of X hence I am trying to find alternative ways to compute the expectation.  Thank you


Should I update kernel for the Zombieload attack

Should I update my kernel for this Zombieload attack?  I'm running ubuntu 19.04.


I watched with interest the  which was fun.  They had a secondary list of vids of one was entitled .  Now I thought that black holes don't necessarily have to be dense, if they are very large.  The Swartzchild radius is  $$ r_\text{s} = \frac{2 M G}{c^2} $$  so if the mass-to-radius ratio exceeds  $$ \frac{M}{r} > \frac{c^2}{2 G} $$  you gotta black hole.  But it's only a single power of $r$ in the denominator.  This means, assuming a sphere, if the density exceeds  $$ \frac{M}{\tfrac{4}{3}\pi r^3} > \frac{3 c^2}{8 \pi G r^2} $$  you gotta black hole.  With $r^2$ in the denominator, it appears you wouldn't need a lotta density if the radius is large enough.  With  $ \frac{c^2}{2 G} = 6.7332 × 10^{26} \frac{\text{kg}}{\text{m}} $  and $ \frac{M}{r} = 4.5455 × 10^{27} \frac{\text{kg}}{\text{m}} $  (Numbers come from Wikipedia. This is including non-baryonic matter and energy, all which should have gravitational effect.)  It looks pretty close, but with these numbers the entire mass and energy of the observable Universe is contained in a radius smaller than the Swartzchild radius.  45.455 is bigger than 6.7332.  Couldn't an entire observeable universe be a black hole?  Wouldn't this be a different "type", a fifth type of black hole than the four described in the NOVA vid?


Should I write "one of 2 things", "1 of 2 things" or "One of two things"

I am proofreading some rules and came across the following:      Each turn you must do 1 of 2 things:  either take an action on 1 of the top 2 cards of your deck, or discard the top card of your deck"   and     When taking an action, choose 1 of the three actions that may be present on the active area of the card.  The 3 actions are: . . .   My gut tells me that the "1"s should be written out as "one" but that the "2"s and "3" could be left as ordinals or written out. I am also aware that some would say that all these numbers should be written as words, since they are less than ten. How should the above best be written?


"No module named _struct" after manually building and installing python 2.6

running Ubuntu 12.04, I had the usual python 2.7 in place .  I needed python 2.6 , so I downloaded the source and did   ./configure make sudo make install   A mistake, as I did not want to replace my system-wide python .  Now some programs stopped working , e.g. update-manager with   ImportError: No module named gi.repository   I used update-alternatives to make python 2.7 default again, but many python applications still won't start up because of some missing modules .  Can someone give a hint what happened and what the best way to fix it would be?   Thanks in advance.  Edit :   I could get some functionality of apt-get to work by setting my own hard link from /etc/python to /etc/python2.7 . ( So I guess using update-alternatives really did not do much good eithe. ) I did a dist-upgrade , which basically worked, but a lot of the package managing via apt-get is still broken. In particular, a problem with python-minimal prevents many other installations of packages I wanted to do .  Setting up python-minimal (2.7.3-0ubuntu7) ... Traceback (most recent call last):   File "/usr/local/lib/python2.7/runpy.py", line 162, in _run_module_as_main     "__main__", fname, loader, pkg_name)   File "/usr/local/lib/python2.7/runpy.py", line 72, in _run_code     exec code in run_globals   File "/usr/local/lib/python2.7/compileall.py", line 16, in <module>     import struct   File "/usr/local/lib/python2.7/struct.py", line 1, in <module>     from _struct import * ImportError: No module named _struct dpkg: error processing python-minimal (--configure):  subprocess installed post-installation script returned error exit status 255   PS: Building 2.7 from source always did exit (also before dist-ugprade or update-alternatives) with   make: *** [libinstall] Error 1   Currently, on make , there are more issues (" Python build finished, but the necessary bits to build these modules were not found: _bsddb             bsddb185           bz2 dl                 imageop            sunaudiodev To find the necessary bits, look in setup.py in detect_modules() for the module's name. ")   As this is a little over my head , I guess I am just better off with a fresh install from scratch .


Difference between a .bib and .bbl file for Latex

I want to use a .bib file in a conference .tex file where they precise that we should use a bibliography generated by BibTeX as a .bbl file:         \bibliographystyle{IEEEtran} % argument is your BibTeX string definitions and bibliography       %database(s) \bibliography{IEEEabrv,../bib/paper}   When I use directly:   \bibliography{refs} %refs is my refs.bib   I get an error.   Must I convert the .bib to a .bbl? If yes, how?


How can I create a 500 Mb partition formatted on ext4 via command line ? Is this possible ? I'm trying to get accustomed with the terminal on Ubuntu 14.04.


What does the presence and absence of "automatic" mean in apt output?

In the below output, what does automatic mean? $apt search exfat Sorting... Done Full Text Search... Done exfat-fuse/focal,now 1.3.0-1 amd64 [installed,automatic]   read and write exFAT driver for FUSE  exfat-utils/focal,now 1.3.0-1 amd64 [installed,automatic]   utilities to create, check, label and dump exFAT filesystem  And in this context are there any similar/other output details to be known about apt (and the apt family tools) output?  Any refs will be great. Edit 1: In place of automatic, what other values are possible? I have searched: apt  -qq list | grep installed | grep -v automatic apt-file/focal,focal,now 3.2.2 all [installed] aptitude/focal,now 0.8.12-1ubuntu4 amd64 [installed] base-passwd/focal,now 3.5.47 amd64 [installed] console-setup/focal,focal,now 1.194ubuntu3 all [installed] dash/focal,now 0.5.10.2-6 amd64 [installed] diffutils/focal,now 1:3.7-3 amd64 [installed]  I don't see anything like manual as suggested in the comments. Both apt-file and aptitude were installed manually by me, so shouldn't there be a manual tag for these packages? Edit 2: To clarify completely. There is no tag called manual. So it's implicit: if it's not automatic then it has to be inferred as manual.


How to get Office 2010 (specifically Outlook) to run?

Although there are many alternatives out there, I'm not prepared to get away from Outlook yet, and I have many clients I'd like to switch over to Ubuntu but they need Outlook and won't switch because of this one thing holding them back.  Currently I have Ubuntu 11.10, Wine 1.3.35 and PlayOnLinux 4.0.14 I tried to get Wine 1.3.9 which apparently supports Office 2010 but I can't get that to install either.  Not sure if it's a waste of time, but that's a separate question if it's a path worth going down.  Office 2010 starts install with PlayOnLinux no problem but half way through fails with the following error:  1: 25541 2: -2147024786 3: C:\windows\Microsoft.NET\Framework\v2.0.50727\CONFIG\machine.config   I'm thinking I have to install .NET framework separately first but I don't want to mindlessly install all kinds of software and makes things worse.  I appreciate any advice on this so I can help promote this awesome operating system.


Find all real solutions for the system: $x+\frac{1}{y}=y+\frac{1}{z}=z+\frac{1}{x}$ given that $xyz=1$

Find all real solutions for the system:   $$x+\frac{1}{y}=y+\frac{1}{z}=z+\frac{1}{x}$$    given that $xyz=1$.   This is from a math olympiad (OBM 2009).   By inspection it is easy to spot that a possible solution is $x=y=z=1$ but are there others? It looks like it is not a difficult question but I'm not finding a nice approach.   Hints and solutions are appreciated. Sorry if this is a duplicate.  Edit 1: Pointed out by helpful comments below,  presents a complete solution for this problem, for all possible cases. From that mentioned answer we can conclude that when $xyz=1$ there are two possible solutions:  $$(x,y,z)=(1,1,1)~~\text{and}~~(x,y,z)=(a,\frac{-1}{a+1},\frac{-(a+1)}{a}),\forall a \in \mathbb R\setminus\{0;-1\}.$$  Answers using other techniques or arguments are welcomed.


In the TV series Glitch, we see several people returning from the dead. Most of them, especially those that have been dead longer, have some difficulty remembering their past lives.  In the second episode, "Am I in Hell?", Vic has a car accident near the cemetery the risen came from. We're made to believe he has now risen too.  In a later episode, doctor Elishia McKellar confirms that he has died and immediately come back to live during the accident, although it's unclear how she knows that.  Vic shows a complete change of character after his accident. Also, he seems to heal at extraordinary speed.  Has Vic risen?


Fantasy book trilogy with VR game. Protagonist is a bard

Years ago I read a fantasy trilogy, which I’ve since loaned to someone and never got back.  It was about a man who was developing a VR game which was entered via a sensory deprivation tank. Something happened and he got stuck in the game, where if you died you would also die in real life. It was a fantasy medieval kind of a game, where he was playing a bard.  In real life he had a wife and they were really good fencers. They’ve crashed a plane in France and he ended up having trouble with his leg and she ended up only as organs held together in a plastic case. At the end he sort of became his wife in game and had a child and I think she was evil(?)


In Python, is there a portable and simple way to test if an executable program exists?  By simple I mean something like the which command which would be just perfect. I don't want to search PATH manually or something involving trying to execute it with Popen & al and see if it fails (that's what I'm doing now, but imagine it's launchmissiles)


Minecraft Crash: Insufficient memory..."

It always says "Insufficient memory for java runtime to continue" I already have 6GB dedicated to minecraft so I am not sure what else to do to fix the problem


How to get the Login Name of user from people picker control using jquery?

I want to get the log-in name of user from people picker control using jquery.  I have a code which displays the display name of the user but I am not able to get the login name.  Code is as follows:  $(document).ready(function () { $("input[title='Project Owner']").focusout(function () {          var loginName = $("span.ms-entity-resolved").attr("title");      alert("Login Name:" + loginName);      var displayName = $("span.ms-entity-resolved div:first-child").attr("displaytext");      alert("Display Name :" +displayName);  });  });   Here Project Owner is name of the PeoplePicker control.  How do I get the login name?


Is it "a sombre look" or "sombre looks" when there are many people having (a) sombre facial expression(s)?

I am looking at a situation where many people are wearing the look and I don't know for sure which one to use between these two:  They had all gathered in the ante-room, wearing a sombre look. They had all gathered in the ante-room, wearing sombre looks.  Also, is the comma necessary?


Central Pennsylvanian English speakers: what are the limitations on the "needs washed" construction?

In the  (and possibly elsewhere), the following construction is possible:        This car needs washed. (=needs to be washed)   The room needs cleaned. (=needs to be cleaned)      It appears that, if a verb like needs is followed by a passive construction in the infinitive, the "to be" portion is left out.  This construction sounds so unnatural to my ear that I have no intuition as to the extent to which it can be extended to other words and contexts.  If anyone here is a native speaker of this dialect of English, perhaps they can help to explain the limits on its use.  My basic question is: how productive is this particular construction among those who use it?  To be more specific, can this construction be used with any verb (if that verb can be immediately followed by a passive construction, of course)?  That is, would (any of) the following be acceptable, for example?        At this restaurant, we always wait seated. (=wait to be seated)   My kid hates picked last in sports. (=hates to be picked)   We all want loved. (=want to be loved)      If this construction is restricted, then which verbs can be used, aside from need?  Edit: What I am really hoping for here is that there is someone who happens across this question that can say, "I actively use this construction, and here's what I can and can't say."


Can you guys give me some advice on how to make animation like that? I want to create an animation very similar to this in the video.  Thanks for any advice


Add a pause to an animated camera (following curve path)

I'm new to Blender.  I'm running the latest (2.74).  I have made a complex scene, with a camera following a Curve Path.  I would simply like to stop the camera from moving, from time to time, to allow the viewer to take a good look at whatever the camera is pointing at, then continue along the path.  I have searched and searched and tried a few tutorials, but nothing works for me.  I'm missing a simple procedure, I know!  I've read about doing animation all with keyframes instead of following a path, which seem to make it easier to have control, but I don't want to re-invent my complex path.  I have tried messing the inserting keyframes manually into the timeline and then editing them in the Dope Sheet but failed miserably.


Specific questions versus general questions

A meta question. After spending 6 hours trying install XYZ I found that I need to put one line in one file and this is information is missing from the docs of the package/library/language. One of the great strengths of SO is that these things often can be found very quickly browsing through the questions. The FAQ and responses at meta-SO however are tending in the direction that too specific questions are not of great value.  Background: I have been starting moving into developing more seriously again, and find SO of great value in many regards. I'm just wondering how SO will develop in the, say ecosystem of programming knowledge. In a way I'm confused, because too specific questions are frowned up, at the same time too general questions are often not wanted also.  The general question is a "canonical" one, meaning that it has been asked many, many times, in one form or another. A single canonical question (i.e. a mini tutorial) substitutes for the many specific questions.  However the problem is that:  What annoyed me is that the "canonical" answer just has a bunch of links to [XYZ].   See:


Directory owned by a group that doesn't exist?

I'm witnessing a a directory which has for group owner "1002" ... However I do not have any group with such ID (verified with getent group | grep 1002 ).  Even history | grep groupadd gave nothing.  Where could that be coming from. Any '100x' group ID is a user ID if I'm right no ?


How to copy a layer between images or canvas in gimp 2.8?

I have two image tabs open and I want to copy one layer from the first image to  the second image keeping dimensions and size.  How would I do that?  Example:  I have this 640px by 400px first image with two layers - the background and a brush    and I want to copy the brush layer to this other image of 1600px by 1200px.


How to change bibliography citation from 'and' to native language?

I want to have a citation but I my citation I have word 'and' which is english however paper I am currently working on has to be in a different language thus my question is how to change this 'and' to equivalent word in different languages?     My code is:  \documentclass[10pt,a4paper]{article} \usepackage{polski} \usepackage[utf8]{inputenc} \usepackage{amsmath} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{graphicx} \usepackage{fancyhdr}  \pagestyle{fancy} \fancyhf{} \usepackage[round]{natbib}    \bibliographystyle{plainnat}   \cfoot{\thepage} \renewcommand{\headrulewidth}{0pt} \renewcommand{\footrulewidth}{0pt} \renewcommand{\baselinestretch}{1.5}  \author{Nice} \title{Nice} \begin{document}     \section{Words on a printed page}         Some random words     \subsection{Words }    \newpage     %\nocite{*} %\bibliographystyle{amsplain} \bibliography{bibliografia.bib}  \end{document}   And sample bibliography entry:  @article{piketty2003income,     title={Income inequality in the United States, 1913--1998},     author={Piketty, Thomas and Saez, Emmanuel},     journal={The Quarterly journal of economics},     volume={118},     number={1},     pages={1--41},     year={2003},     publisher={MIT Press} }   Simple removal of the word "and" from bib files does not work.


Why is orbital angular momentum quantized according to $I= \hbar \sqrt{\ell(\ell+1)}$?

I simply have no idea how this result is found $$I=\hbar  \sqrt{\ell(\ell+1)}.$$ The result seems to just be dumped in textbooks rather than explained. I can get the result that $I_z=\hbar m_j$. Please explain as clearly as possible how this is derived.  Also, any pointers towards any books/videos that may help me learn quantum mechanics would be appreciated.


How many ways "ARRANGE" can be arranged?

In how many ways can the letter of the word "ARRANGE" be arranged in which two Rs and two As come together?


How to upgrade Apache HTTP Server from version 2.4.16 to the latest stable version i.e. 2.4.18 on 64-bit Ubuntu 14.04 LTS?

I'm basically a PHP Developer by profession and I'm using LAMP on my machine. I'm using 64-bit Ubuntu 14.04 LTS on my machine.  I'm using Apache HTTP Server on my machine. To check it's version I executed following command and got following result :  ~$ apachectl -V   Output is as below :  Server version: Apache/2.4.16 (Ubuntu) Server built:    Server's Module Magic Number: 20120211:47 Server loaded:  APR 1.5.2, APR-UTIL 1.5.4 Compiled using: APR 1.5.2, APR-UTIL 1.5.4 Architecture:   64-bit Server MPM:     prefork   threaded:     no     forked:     yes (variable process count) Server compiled with....  -D APR_HAS_SENDFILE  -D APR_HAS_MMAP  -D APR_HAVE_IPV6 (IPv4-mapped addresses enabled)  -D APR_USE_SYSVSEM_SERIALIZE  -D APR_USE_PTHREAD_SERIALIZE  -D SINGLE_LISTEN_UNSERIALIZED_ACCEPT  -D APR_HAS_OTHER_CHILD  -D AP_HAVE_RELIABLE_PIPED_LOGS  -D DYNAMIC_MODULE_LIMIT=256  -D HTTPD_ROOT="/etc/apache2"  -D SUEXEC_BIN="/usr/lib/apache2/suexec"  -D DEFAULT_PIDLOG="/var/run/apache2.pid"  -D DEFAULT_SCOREBOARD="logs/apache_runtime_status"  -D DEFAULT_ERRORLOG="logs/error_log"  -D AP_TYPES_CONFIG_FILE="mime.types"  -D SERVER_CONFIG_FILE="apache2.conf"   From the above output you can see that I'm using older version of Apache HTTP Server on my machine. I want to get it upgraded to the latest stable version i.e. Apache HTTP Server 2.4.18.  Can someone please tell me in detailed step-by-step manner how to do it?  Thanks.


Holomorphic function mapping a set onto a straight line

I wonder if this is correct: there is a holomorphic function on an open connected subset $G$ of $\mathbb{C}$ which maps $G$ onto a subset of a straight line, and I have to show that the function is constant.   I thought I can suppose that the straight line is the real axis (otherwise I can find a rotation and a traslation that will do so) and so using the Cauchy-Riemann equations I find that the function is constant since its imaginary part is zero. Is that correct? Thank you


Example of a non-zero module that has no associated primes

I'm currently reading up on Associated Primes and localization. I came across the following theorem. Let $M$ be an $R$ module.  If $M = 0$ then $Ass(M)$ is empty. The converse is true if $R$ is a Noetherian ring. I understood the proof of this result.   Now I'm trying to come up with an example of $M$ being a non-zero $R$ module with $R$ NOT Noetherian but $Ass(M)$ is empty. Is there an easy example to show that the converse fails to hold when $R$ is not Noetherian? Thank you so much for any assistance! :)


Which would be correct?        The fridge, the shelves, the walls, the floor, and John himself, were all covered in foam.   The fridge, shelves, walls, floor, and John himself, were all covered in foam.      The the can be applied to all the nouns, so is there a need to repeat it?


Finding Romanian ancestors from Sibiu, Gușterița?

I have just married my husband, who is Romanian, and I want to add his family to my family tree.  However, we do not know where to start because we cannot find a website that helps.   His father is from Sibiu, Gușterița and it is his fathers side we are looking for.  If anyone can help please give me an idea as to where to start our search?


gparted doesn't detect there's unallocated space

I'm trying to resize my Ubuntu partition but there seems to be a problem. I'm trying to do it from a live USB. I have unallocated space but when I try to resize my Ubuntu partition, gparted just lets me shrink it and doesn't lets me expand it. It's like he doesn't detect there's space.    Any idea on how to do it?


Google not indexing my site and no issues in Search Console

Hi I have an IT consultancy that been up on Google for the last year or more that was indexed with no issues. Just a few weeks ago Google removed the site from their index and there seems to be no reasons why it now does not appear.   Search console doesn't show any manual actions or security issues, and URL inspection is showing that it is indexed and everything should be fine.  I recently tried hiring an SEO company to help me and their only advice was to rebrand my company and change domain to a new one,  which I thought was unacceptable.  Can anyone give me some advice or some tips to how I can resolve this?


Access two consecutive elements of a list in Python

I need to access the n and n+1 elements of a list. For example, if my list was [1,2,3,4,5] and my nth element was 2, I'd need the next element in the list, 3.  Specifically, I need to access these elements in order to use them to look up a value in a matrix A  I have a for loop that's iterating over the list:  list = [1,2,3,4,5]  for i in list:   value = A[i,i+1] #access A[1,2], A[2,3], A[3,4], A[4,5]   the problem with this is that I can't do an i+1 operation to access the n+1 element of my list. This is my first time programming in Python and I assumed element access would be the same as in C/C++ but it's not. Any help would be appreciated.


Find the cumulative function and the density of $m_n$ and $M_n$, where $m_n=\min(X_1,X_2,...,X_n)$ and $M_n=\max(X_1,X_2,...,X_n)$.

Let be $X_1,X_2,...,X_n$ be uniformly distributed random variables i.i.d.  a)  Find the cumulative function and the density of $m_n \text{ and } M_n$ , where $m_n=min(X_1,X_2,...,X_n)$ and $M_n=max(X_1,X_2,...,X_n)$.  b)  Let $Z_n=n(1-M_n)$. Show that $Z_n \xrightarrow{d} Z $, where $Z$ is a random variable with cumulative function $F_Z(z)=1-e^{-z}$


Is the limit of the empty diagram considered a product?

It is a theorem on the stacks project that if a category $\mathcal{C}$ has finite products and equalizers then it has a terminal object, this theorem is at .   But the category $\mathbb{Z}$ considered as a totally ordered set has all finite products which are given by taking the minimal element, and it vacuously have all equalizers, but has no final object. What is going wrong here?


Is there a tool/website to compare package status in different Linux distributions?

I am currently looking for a website or a tool that would allow me to compare the package state of a particular software in different Linux distributions.  For instance, which version of gimp is provided by Mint, Ubuntu, Debian Sid and Fedora 18?  An immediate interest would be to be able to avoid reinventing the wheel when packaging software (for instance re-use patches from other distros).


What's the Simplest Way to Convert a book from XeLaTex to Epub

I have a 508-page book setup in LaTex. The book has 60+ images and uses custom fonts (the reason why I'm using XeLaTex). I use Overleaf and can easily spit out PDFs to create the paperback version of the book. I need to create an ePub version of the book for Kindle and digital platforms. I looked at a lot of different threads and solutions (SimpleTeX4ht, Pandoc, TexStudio > HTML > Calibre, tex4ebook, etc). Nothing seems to work out-of-the-box for XeLaTex-compiled books. What's the easiest/fastest/simplest way to get from LaTeX to ePub in my situation? A big reason why I used LaTeX for layout is because it makes it easier to manage/update/reuse in different formats, so ideally I'd like to be able to use the same code base for everything.


Eclipse Error log file generated on Exit

I am running Ubuntu 16.04 LTS. Eclipse Oxygen(September) seems to work fine when I want to edit Java files but when I close eclipse. A log file with error is generated in /home/user/   # # A fatal error has been detected by the Java Runtime Environment: # #  SIGSEGV (0xb) at pc=0x00007f3fbd7a8c4c, pid=28399, tid=0x00007f4050387700 # # JRE version: OpenJDK Runtime Environment (8.0_131-b11) (build 1.8.0_131-8u131-b11-2ubuntu1.16.04.3-b11) # Java VM: OpenJDK 64-Bit Server VM (25.131-b11 mixed mode linux-amd64 compressed oops) # Problematic frame: # C  [libjavascriptcoregtk-4.0.so.18+0xd45c4c]  WTFCrash+0x1c # # Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again # # If you would like to submit a bug report, please visit: #   http://bugreport.java.com/bugreport/crash.jsp #   Its followed by this error message from Ubuntu


For every subgroup $H$ of a finite abelian group $G,$ there exists a subgroup $N$ of $G$ such that $G/N \cong H.$ I need to prove this or give a counter example.  I am aware of isomorphism theorems and classification of abelian groups, direct products etc.


Creating Inky-looking characters in Blender

I'm involved in a project to do with ink animation and experimentation. I found this incredible piece of animation:    I originally thought this was some sort of After Effects compositing (is it even possible in AE?!), but found out that this particular animation was created in 3DS Max with Krakatoa and FumeFX. I'm just wonder if a similar effect is doable with Blender's smoke simulator.  There are various YouTube videos that have pretty decent results of ink renders from Blender, but I can't seem to find anything of a similar sort of movement animation. Just blobs floating around! The closest thing I found was this animation of a         but again I can't seem to replicate this. The smoke just doesn't seem to follow my character's animation. Any help with this would be greatly appreciated. Thanks.


Using newcommand and newenvironment to print a labled tabular

I posted this question as guest with some issues that should be fixed in this version so here it goes.  I have the following self defined counter and command:  \documentclass{article}  \newcounter{usecase}[section] \newcommand{\usecasenumber}{\arabic{usecase} \stepcounter{usecase} \newcommand{\usecase}[9]{     \begin{tabular}{| p{4cm} | p{8cm} |}         \hline         Anwendungsfall-Nummer       & U-\usecasenumber  \\         \hline         Hauptakteur                 & #1                \\         \hline         Andere Akteure              & #2                \\         \hline         Beschreibung                & #3                \\         \hline         Vorbedingung                & #4                \\         \hline         Nachbedingung               & #5                \\         \hline         Ausführung                  & #6                \\         \hline         Alternativen                & #7                \\         \hline         Ausnahmen                   & #8                \\         \hline         Benutzte Anwendungsfälle    & #9                \\               \hline     \end{tabular} }  \begin{document} \usecase{1}{2}{3}{4}{5}{6}{7}{8}{9} \end{document}   I now want an environment named usecase that does the exact same thing my newcommand does plus adding another line to the table with the name that one should be able to give the usecase environment. The environment should be able to automatically increase the counter and I want to be able to add labels to the usecase environment (just like it is possible in figure or table). When I reference such a label with \ref I want the reference to be the number of the environment given by the counter usecase.  I am not sure how to realize that or if it is even possible. I would start with something like this but I don't know how to proceed from there on to achieve the desired behaviour.  \newenvironment{usecase}[1]{\refstepcounter{usecase}}{     % TODO }   It would be really appreciated if someone could help me out here. :)  Edit:  Alternatively, I woul be O.K. with a floating environment named usecase that takes a paramater that will be its caption. If that makes it any easier.


Ways of concatenating string in a prepared statement

I have a web application that needs to be stored its data on specific tables depending on the user's input. e.g. if a user input Code "A" their data will be saved to DatabaseA, while if a user input Code "B", the data will be saved to DatabaseB. I need to know if there is  way to manipulate the prepared statement in order to just concatenate the code into the end of the prepared statement string.  I have 3 tables, MachineProblem2A,2B,and 2C. is there a way to just simply concatenate the code in to the end of my sql string below?          String sql="select * from MachineProblem2";         PreparedStatement pstmnt= conn.prepareStatement(sql);   I tried different ways like "select * from MachineProblem2"+employeeCode but it's not working. I tried "select * from MachineProblem2".concat(employeeCode) it's not working as well.  I  even tried a function that I created where in conditional statements exist and would depend on the employeeCode e.g. if(employeeCode.equals("A") return "select * from MachineProblem2A"   all of this gives me either a Null Pointer Exception or java.lang.InstantiationException: bean employeeRecords not found within scope error.   I'm getting Null pointer on sqlRet() and getAllRecords() but The data inputs were stored properly on the designated tables. I'm having problem with retrieving them for output.   private String sqlInsert(){     if(employeeCode.equals("A") && employeeSales > 2500){         return "insert into MachineProblem2A(EmployeeName, EmployeeCode, EmployeeSales, EmployeeGross, EmployeeCommission, EmployeeResult)"+ "values(?,?,?,?,?,?)";     }else if(employeeCode.equals("B") && employeeSales > 2000){         return "insert into MachineProblem2B(EmployeeName, EmployeeCode, EmployeeSales, EmployeeGross, EmployeeCommission, EmployeeResult)"+ "values(?,?,?,?,?,?)";     }else if(employeeCode.equals("C") && employeeSales > 1500){         return "insert into MachineProblem2C(EmployeeName, EmployeeCode, EmployeeSales, EmployeeGross, EmployeeCommission, EmployeeResult)"+ "values(?,?,?,?,?,?)";     } return null;  }        private String sqlRet(){     if(employeeCode.equals("A") && employeeSales > 2500){         return "select * from MachineProblem2A";     }else if(employeeCode.equals("B") && employeeSales > 2000){         return "select * from MachineProblem2B";     }else if(employeeCode.equals("C") && employeeSales > 1500){         return "select * from MachineProblem2C";     } return null;  }   private void insertRecord(Connection conn){      try{           PreparedStatement pstmnt= conn.prepareStatement(sqlInsert());         pstmnt.setString(1, employeeName);         pstmnt.setString(2, employeeCode);         pstmnt.setDouble(3, employeeSales);         pstmnt.setDouble(4, gross);         pstmnt.setDouble(5, commission);         pstmnt.setDouble(6, result);          //now commit to database         pstmnt.executeUpdate();      }catch(SQLException sqle){         sqle.printStackTrace();     }  }   // get records      public ResultSet getAllRecords(Connection conn){     ResultSet records = null;      try{           PreparedStatement pstmntA= conn.prepareStatement(sqlRet());          records= pstmntA.executeQuery();        }catch(SQLException sqle){         sqle.printStackTrace();     }     return records; }   //Error//  java.lang.NullPointerException edu.ust.iics.employee.model.EmployeeBean.sqlRet(EmployeeBean.java:183) edu.ust.iics.employee.model.EmployeeBean.getAllRecords(EmployeeBean.java:225) edu.ust.iics.employee.controller.EmployeeHistoryServlet.doPost(EmployeeHistoryServlet.java:35) edu.ust.iics.employee.controller.EmployeeHistoryServlet.doGet(EmployeeHistoryServlet.java:28) javax.servlet.http.HttpServlet.service(HttpServlet.java:622) javax.servlet.http.HttpServlet.service(HttpServlet.java:729)


Python : create new collection under root

How to create a new collection under root ? cols = bpy.data.collections new = cols.new("MyTestCollection")  then how to link to root level ? I tried these : cols['Master Collection'].children.link(new)  or cols['Scene Collection'].children.link(new)  Can someone show me the correct code ?


$$\lim_{n \rightarrow \infty}{\prod_{j=1}^{n}\Big(1+\frac{2j-1}{2n}\Big)^{\frac{1}{2n}}}$$   I actually used logarithm after equating it with $l$.  That is  $$\log{l}=\frac{1}{2n}\sum_{j=1}^{n}\log{\Big(1+\frac{2j-1}{2n}\Big)}$$  After that, I was unable to proceed


I have upcoming business flight between Houston and Bali, Singapore, This flight has a 2-hour layover in Tokyo, and and a plane change Do I need transit visas beyond a business VISA for Singapore?


Stuck in a tping loop away from the command block on singleplayer and I do not know where the coordinates are

I am stuck in a command block teleporting loop, and I am far away from the command block. I don't know the coordinates or anything. Please help :c


If $gcd(n,m)=1$ and $x\equiv y(mod\phi(m))$ then $n^{x}\equiv n^{y}(modm)$.

I am trying to prove that if  $gcd(n,m)=1$ and $x\equiv y(mod\phi(m))$ then $n^{x}\equiv n^{y}(modm)$. Any help would be much appreciated!


Possible Duplicate:          I am a little bit confused about asking a question:     Can you please tell me my next work?   or     Could you please tell me my next work?   Which is more correct?


If $\mathrm{tr}(A)=0$, then we have $A=BC-CB?$

For any matrix $A_{n\times n}$ with $\mathrm{tr}(A)=0$ show that there exist two matrices $B$ and $C$ such that $$A=BC-CB.$$   I know to prove this: if $A=BC-CB$, then we have $\mathrm{tr}(A)=0$ because $$\mathrm{tr}(BC)=\mathrm{tr}(CB)$$ so $$\mathrm{tr}(A)=\mathrm{tr}(BC-CB)=\mathrm{tr}(BC)-\mathrm{tr}(CB)=0.$$ But my problem is that I can't prove it.


How can I measure the execution time of a terminal process?

I'm trying to measure the execution time of a process that I call via the command line (i.e., I want to find out how long it takes to for the process to finish). Is there any command that I can add to the command calling the process that will achieve this?


Small issue with inconsistency of votes cast summary and detail votes tab in profile

When I look at my profile, I found there's an inconsistency of numbers in the summary shown at the page bottom, and the numbers shown in the details vote page: Summary:  Detail page:  Why is that? A mod explained it may come that deleted posts aren't counted at the detail page, can someone confirm please? Also I find that at least confusing, is that intentional, and if yes why?


Jacobson radical equal to nilradical in $R[X]$

Let $R$ be a non-zero commutative ring with identity. Let $\textrm{nilrad}(R)$ be the nilradical of $R$, which can be characterised either as the intersection of all prime ideals of $R$, or as the ideal of nilpotent elements. Let $J(R)$ be the Jacobson radical of $R$, which can be characterised either as the intersection of all maximal ideals of $R$ or as the ideal of elements $x\in R$ with the property that $1-xy$ is a unit for all $y\in R.$   In general, the nilradical of R is contained in the Jacobson radical. I want to show that the reverse inclusion holds in the polynomial ring $R[X].$ Can someone please give me a hint for this problem? Thank you.


Does the positron prove that Dirac's electron sea must exist?

Does the fact that the positron exists in cosmic rays prove the existence of Dirac' s 'sea' of spin-paired electrons in space.


In the Terminal is there a way to search for a command you previously entered?  Say you typed something in just a moment ago, you can press the up arrow.  But if you typed it in hours ago, or a day ago, is there a way to search for keywords that existed in this command, then to retrieve the command?


Are infinitesimals, i.e. $dx = ...$, rigorous and correct notation?

In many fields of physics and engineering, when we want to describe an infinitesimal, for example, the electric field, we could say $dE(x_i,y_i) = e^{jkr}...dx_0dy_0$   Since derivatives are not fractions, does it still make sense, in a mathematically rigorous way to talk about infinitesimals and would this be the correct notation of describing it? What would be the rigorous way of dealing with infinitesimals?  --Edit--  The history of this question went from "duplicate to an irrelevant question" but once reopened was closed for being "missing context" despite proper english, a clear yes or no question with already great answers (which would be impossible if the question was indecipherable). It seems like those with points have been abusing their powers an incorrectly closing questions that they simply don't like.


Can anyone tell me how to get my caption on side of my figure, and at the same time aligned with the top of my figure?


What determines when/how 'by type' and 'by tag' are shown in the review queues?

The review queue home pages look pretty much the same across the Stack Exchange network. However, I noticed that on Stack Overflow the Close Votes and Reopen Votes review queues have an option to filter on the close reason (ordered by the most common one? I can't tell):  and the First Posts review queue on Super User has an option to filter on tag (only [windows-10] is shown, I suppose that's the most common tag):  Is there any (documented or not) logic when those options are shown? The post linked to by @rene mentions  Currently it's enabled only on Stack Overflow. Note, that we have a big threshold (50) for how many outstanding reviews there must be with a tag or close reason in order for it to show up on the dashboard. Update Jan 3rd, 2017: As noted below, this is implemented - however, it cannot be enabled for tags on Stack Overflow, as . Close reason filters from /review are still operational, and tags as well on smaller sites (currently Super User and Ask Ubuntu).  I assume that's still up-to-date, but the type/tag filters are only shown when you have access to the queues so I can't check. Still, it's close enough to what I was looking for.


\begin{verbatim}      infile 'dir_location\filename.csv' delimiter=",";   \end{verbatim}   throws an error on the first '.  What the H?


Display output from command and save to file

If I wanted to save output to a file from a command like make, I would do:  make > out.txt   However that stops the output from being displayed on the console window, and only saves to a file.  Is there a way to display output from a monitoring process, or a long make command and save it to a file?


How to disable or remove the YaraScanService (MRT.app)?

Recently on MacOS 10.13.6 I have noticed high CPU usage and identified the process YaraScanService as consuming close to 90% CPU.  The Activity Monitor lists it under:  /System/Library/CoreServices/MRT.app/Contents/XPCServices/YaraScanService.xpc/Contents/MacOS/YaraScanService  as part of the MRT.app.  According to  thread and  it appears to be some kind of Apple's built-in antivirus that is doing its scanning yet there doesn't seem to be a way to disable or remove it apart from killing it from the Activity Monitor or with pkill.  Any pointers on how to control it or stop/disable it?  I would assume that if you have dozens of gigabytes of zip, tar, bzip, rar, jar archives then yarascan will unpack them all to memory or disc in order to scan them, and there is absolutely no way to whitelist or exclude them.  The MRT.app is timestamped on 10-Aug-2018 along with a bunch of other folders (apparently the date when I accepted an Apple update). Most files inside the folder are timestamped 4-Jul-2018 and 8-Jul-2018, supposedly when the app was released by Apple.


Given a subgroup $H $, find a normal subgroup of $G$ with index less than or equal to $n!$

Let $G$ be a group and $H$ a subgroup with finite index $n$.  Prove that $G$ has a normal subgroup $N$ such that $N\subseteq H$and $|G: N| \le n!$.


Getting rid of windows 10 from dual boot

How can I completely uninstall Windows 10 from a dual boot with Ubuntu?


System.getenv() returns null when the environment variable exists

I am trying to System.getenv() to get the value of an environment variable that I have set through my terminal (Mac), I also set the variable in my .bash_profile file and reloaded. After doing so, I echo'd the value and the correct value was printed to the terminal. When trying to retrieve the value of the variable (I made sure I was using the correct name in both my .bash_profile file and when using System.getenv().  In the below code, I have replaced the name of the variable with VAR_NAME:  String varValue = System.getenv("VAR_NAME"); System.out.println("Value: " + varValue);   In my .bash_profile:  export VAR_NAME="foo"   "null" is printed when I print out the value of varValue.  What could be the cause of this?  Edit: I followed the top answer , restarted Eclipse and it worked!


Word that means "Strip down to the basics"

the answer to this question seems to be on the tip of my tongue but I can't seem to find it.   I'm looking for a word that defines the act of "stripping down to the basics"  For example, if I'm talking with a friend and he says running a business is complex and I respond by saying, "You just have to focus on generating sales, reducing overhead, etc"  Now, the act of me "taking something complex and explaining it in simpler form" is the word I'm looking for.   I'm aware of phrases like gross oversimplification but I feel like there is a word that literally means the act of taking something complex and making it simple.   The first couple words that came to me were rudimentary, primitive, but is there anything else I'm missing?


What is the iPod touch's screen sensitive to?

I know that tapping on the screen with an object doesn't cause any reaction in the user interface (e.g. it doesn't cause a click of a button shown from an application). To what is the iPod's screen sensitive, and what can I use to replace my fingers?  The problem I am trying to resolve is that, using my finger to play a game, I don't see part of the screen, and my finger hits something that causes the game to end (you know, those little bombs that are launched in the play field when you are trying to slice fruits).


I am trying to install KVM in ubuntu 16.04 using following command:  sudo apt-get install qemu-kvm libvirt-bin ubuntu-vm-builder bridge-utils   and getting following error:  Reading package lists... Done Building dependency tree        Reading state information... Done Package bridge-utils 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  E: Package 'bridge-utils' has no installation candidate   Can anyone help me to install KVM in ubuntu OS?


Can I filter Google results to two specific domains rather than just one at a time?

I often search Google for programming-related questions I have, and rely heavily on the site:stackoverflow.com filter to restrict results to Stack Overflow posts, for example. In some cases, like working with Excel, multiple sites may have useful content (e.g. Stack Overflow and Superuser). Is there a way I can return results from two such sites at once, rather than having to run two separate site:-filtered searches? I have tried |, ,, ;, and OR, both with spaces and without, but have had no luck.


My site size is 25GB & Server Space (Ubuntu 16.04) is 25GB, /dev/xda1 shows 19M free, but still it shows xvda1 is 100% full. Any Fix?


How do heads find the data stored on a hard disk drive?

I heard that to read or write data on a hard disk drive, we need the cylinder id and the sector  id. First move the hdd's r/w heads to the cylinder specified by the cylinder id, and then to the sector specified by the sector id. Is it correct?  Do we need the platter id, and which of the two surfaces of the platter? Or equivalently, the track id (since we have the cylinder id)?  Thanks.


What happens to Bruce Banner when Hulk loses a tooth?

In Age Of Ultron we witnessed Hulk lose a tooth.   My question is: Has Bruce Banner lost a tooth as well?


I want to have a frame to showing text and then data ( in verbatim ). And I cant compile it.   I made this minimum working example :  \documentclass{beamer}  \begin{document}  \begin{frame}[fragile]  \only<1>{ \begin{verbatim} test slide 1 \end{verbatim} }  \only<2>{ test slide 2 }  \end{frame}  \end{document}   I get this error :  ! File ended while scanning use of \@xverbatim. <inserted text>              \par  l.17 \end{frame}   So is using \only a bad solution ?


Can Apache Web Server handle up to 100,000 concurrent connections?

Is it possible to configure Apache Web Server to handle up to 100,000 or more concurrent connections?   I know if this were to be possible, it's definitely going to be resource intensive. In that case, what would be the most likely hardware configuration?  If it's not possible, then what is the maximum concurrent connections that Apache can be configured to handle?  Thanks in advance.


Batteries generate fields in wires that essentially cause the movement of electrons. I think of batteries as two charged plates that essentially contain a mechanism between them to move electrons from the positive to negative plate.  If you have two charged plates they would essentially create a field everywhere.   Now consider a circuit that consists of two batteries and a resistor. The first battery would generate a field everywhere. The second battery would also generate a field everywhere.  Now say the first battery is 6V and the second battery is 3V. That means inside the first battery they're is a field that would result in 1C of charge gaining 6J of potential energy if moved from the negative to positive terminal.   But in a circuit, shouldn't the field from the second battery affect the field inside the first battery? In other words, shouldn't the field from the 3V battery affect the field inside the 6V battery? Since fields can be added, shouldn't the field inside the 6V battery change if a 3V battery is brought near it?  So why do we assume the a n-V battery remains constant in voltage regardless of what other batteries are near it?


I have just started to customize my Ubuntu a little bit and found the Arc-Dark theme to be exactly what I am looking for. There are some small things though. The color of the calendar on top is still white, and the font of the notifications and inside the calendar are off. This is what it looks like right now:  I would like to see the calendar being the same darker color, and maybe having the day numbers font in white. Also the font color of the search bar is off. There is text, but it is just as dark as the background.  It's only visible when you hover over the search bar.  How would I go about changing/tweaking these things? Or did I do something wrong during the installation? Edit: UnKNOWn has answered my question (accepted answer). The css-file was, in my instance, found at /usr/share/themes/Arc-Dark/gnome-shell/gnome-shell.css. I made the small changes to .calendar and .search-entry, saved the file (with sudo rights) and reloaded the theme by simply re-applying it with Gnome-Tweaks!


Why are axions considered cold dark matter? They have a very low mass and if I'm not wrong they decouple before BBN, and in some models even earlier than neutrinos, they they should definitely be relativistic at the moment of decoupling and therefore Hot dark matter. So why aren't they cold dark matter?


Using 2.8 Beta I discovered that most of my colour values end up being a shade of pink, (irritatingly) and I'm not sure quite what's going on. It happens with literally everything. Is there a setting I need to change, or is this actually a bug? As you can see in the screen recording, the white dot in the centre is moving around.   Thanks in advance.


Is there a way in C++ to get nanosecond accuracy? Something equivalent to the nanosecond timer  in Java (System.nanotime).


I want to load ubuntu on a old Sony Vaio V505 pentium M 1.7 ghz....What flavor would work?

I am new to Ubuntu...Want to use this as a web browser and DVD player


How to fix the phenomena where photos add 5 / 10 lbs or kgs to your face?

So, they say that photographs make you look a little heavier or fatter by 5 to 10 lbs or kgs.    It does appear to be true as most of my photographs make my face look "fuller / rounder" than as it is visible normally or in the mirror.    And for probably the same reason some "skinnier" people look nicer or more attractive.   And for someone who works out and is relatively athletic guy, but never takes any selfies, my selfie skills suck.    And plenty of "short & stout" ladies can pull of better looking profiles.      But I figured there's some photography science & art to this.    I did not know the details behind it but recently chanced upon this article.        Key points of Article:     Camera Lens Distortion (Barrel vs Pin Cushion Distortion) Angles of camera  Your pose     How could I fix these distortions to present a more realistic view of myself?    I'm not trying to look slimmer or all the crazy stuff that people do, just more realistic fix of photographic distortions to reality.    A good detailed "photography science/ technical" response and "How to" would be great.


Does discarding a Race or Class card at "any time" apply to both your hand and cards in play?

In the instructions for Munchkin it says:  "You can discard a Race card at any time, even in combat" "You can discard a Class card at any time, even in combat"  but it doesn't state whether this applies to your hand, cards in play, or both. Does the rule apply to both?  Also, does this mean that a player may discard these cards during any phase, even when it's not there turn?


Limit- almost finished, however hint needed.

I tried to calculate following limit: (let me present my solution first, and then point errors or give hints how to finish)$$\lim_{n\rightarrow\infty}\frac{(n!)^n}{n^{{n}^{2}}}$$So my partly solution is: Let $a_{n}=\frac{(n!)^n}{n^{{n}^{2}}}$. Then $a_{n}=(\frac{(n!)}{n^{n}})^n$ and denoting $p_{n}=ln (a_{n})$ we have $p_{n}=ln((\frac{(n!)}{n^{n}})^n)$$=n*ln\frac{(n!)}{n^{n}}=$$n*(ln(n!)-n*ln(n)$ and now I use Stirling formula  $n!\approx\sqrt{2\pi n}*(\frac{n}{e})^n$ and now $p_{n}=n*(ln(\sqrt{2\pi n}*(\frac{n}{e})^n)-n*ln(n))$$=n(ln(\sqrt{2\pi n)}+n*ln(n)-n-n*ln(n))=$$=n((ln(\sqrt{2\pi n})+n))=$$=n(ln(n\sqrt{{2n\pi n})})$ and that would imply that $\lim_{n\rightarrow\infty}a_{n}=exp(n\sqrt{2\pi n})^n$ what does not seem good... Where am I doing mistake, is it wrong way of acting? Any hints are desired, thank you in advance.


Java - Null pointer exception on method call

I am using LibGDX to build a game for android. I am getting a null pointer exception in this class but I dont know why (check the comments).  public class ScoreFont {     private Texture _numbers[];     private int _number;      public ScoreFont(){        //Load font        for(int i = 0; i <= 9; i++){             _numbers = new Texture[10];             _numbers[i] = new Texture("font_"+i+".png");            /*the line above works fine. if I use if(_number[i] != null) System.out.println("loaded"); it will print*/          }         _number = 0;     }      public void setNumber(int number){         _number = number;     }      public void draw(SpriteBatch sb, float x, float y, float width, float height){         String numberString = Integer.toString(_number);          int numDigits = numberString.length();         float totalWidth = width * numDigits;          //Draw digits         for(int i = 0; i < numDigits; i++){             int digit = Character.getNumericValue(numberString.charAt(i));              /*I get a null pointer exception when this method or the dispose() method are called. The _numbers[digit] == null, or even if I switch it for _numbers[0] it is still null. Why?*/             sb.draw(_numbers[digit], x - totalWidth/2 + i*width, y - height/2, width, height);         }     }      public void dispose(){         //I get null pointer exception         for(Texture texture: _numbers){             texture.dispose();         }     } }   What may be happening here? The constructor of this function has to be called always before any method and this will guarantee that the textures are always loaded right? So why am I getting a null pointer exception?  Thanks!


listing, gray background white space problem

I used the following link to implement code listing:    It works generally fine, but whenever I write math and do power of something for example it creates a white space between the lines just like in the picture:    This only happens in math mode when I do exponentiation.  Does anyone know how I can fix this? The code I'm using for the background is as follows:  \definecolor{codegreen}{rgb}{0,0.6,0}  \definecolor{codegray}{rgb}{0.5,0.5,0.5}  \definecolor{codepurple}{rgb}{0.58,0,0.82} \definecolor{codeorange}{rgb}{1,0.4,0} \definecolor{backcolour}{rgb}{0.95,0.95,0.92}     \lstdefinestyle{mystyle}{          backgroundcolor=\color{backcolour},             commentstyle=\color{codegreen},          keywordstyle=\color{codeorange},          numberstyle=\tiny\color{black},          stringstyle=\color{codepurple},          basicstyle=\footnotesize,          breakatwhitespace=false,                   breaklines=true,                           captionpos=b,                              keepspaces=true,                           numbers=left,                              numbersep=5pt,                            showspaces=false,                          showstringspaces=false,          showtabs=false,                           tabsize=2 }    \lstset{style=mystyle, language=Python}   And the packages I am using is listing and color.   I would really appreciate any help! Thanks!


Splitting video in multiple episodes with ffmpeg

I need to cut one video into multiple pieces with ffmpeg.  When I cut just one episode  ffmpeg -i 001.mp4 -vcodec copy -acodec copy -ss 00:00:00.000 -t 00:00:25.500 -strict -2 out1.mp4   or  ffmpeg -i 001.mp4 -vcodec copy -acodec copy -ss 00:00:25.500 -t 00:00:33.750 -strict -2 out2.mp4   my video is cut instantaneously.  But when I chain markers where I'd like to cut  ffmpeg -i 001.mp4 -vcodec copy -acodec copy -ss 00:00:00.000 -t 00:00:25.500 -strict -2 out1.mp4 -ss 00:00:25.500 -t 00:00:33.750 -strict -2 out2.mp4   it still works, but it takes considerably more time (about 10 sec), and I see the same output as when I convert something.  Is something wrong with my ffmpeg-command, or it is better to execute ffmpeg-commands one by one?


How do I pass a quote that has a space at the end as an argument in bash?

Say I have a shell script at ~/script.sh: TEST="$1 $2"  echo $TEST  And I run it with bash ~/script.sh "he " "he", The output of the command will be he he, but I expected it to be he  he because the first argument, which is quote, has a space as the last character of the quote.


Didn't you regret the "Association Trust"?

I was absolutely happy and also surprised, when I could see that after reaching 200 reputation points, I got +100 reputation for every sub-account. It's a very kind decision.  It also means that if someone reaches 200 reputation, you trust him so strongly that you clear most of the beginner's limits for them.   However, is 200 reputation enough for you to trust someone that strongly? Isn't it a bit few?


Algorithm to detect the point intersect the semi circle in android Java

I have a points x and y and I need to check the point which intersect within a semi- pie.  I need an algorithm to find the point is intersect in the semi circle. for rectangle we have point contains method to check the point intersect the rectangle, but this doesn't work for semi circle segments with start and end angle.  I have created many semi pie segment, when I touch the pie segment, I need to check the point intersect of which segment.


This is something that I have always wondered about. In ICI you often and almost exclusively see receptacles ground up. As the story goes it's to stop objects from sliding down an contacting the live prong of a poorly inserted plug.   The Canadian Electrical Code makes no reference to the "correct" orientation but shows the image of a receptacle ground pin up. But hot wires are supposed to be on the right bottom terminal first(I've been told). Why the discrepancy between industrial and institutional vs residential? Commercial goes either way, but if it's inherently safer ground up why are receptacles manufactured to be ground down and why is residential ground down? Over the years I've discussed this with many electricians of various backgrounds and have got a lot of different answers. Hoping to get something concrete here.


New browsers windows are always full screen

I have the feeling I am missing something obvious, but if I knew I wouldn't be asking ... every time I create a new browser window in Firefox on Ubuntu 20.04, the window size of the new window fills the entire screen. On a 4K monitor, that's a bit excessive for a web browser window. How do I set the default size of new browser windows to be something smaller?


In which country to apply for Schengen visa?

My purpose of travel is to attend an academic conference at Amsterdam.   I'm also planning to visit Paris before attending the conference. So, my first port of entry is Paris.  Where should I apply for my Schengen visa? I want to apply at the French embassy as the processing time is fast. Is this fine?


Analysis of Conditions with no results and high offset number - PostgreSQL JSONB

I am asked to record down the analysis on PostgreSQL JSONB query having Conditions with high offset number and query that provide no results considering the below. select     * from     sub_test df,     jsonb_array_elements(json_data) jba where     (jba->>'name')::text = 'SubYear'     and (jba->>'value')::numeric > '2050';   SubYear > 2200 (has no results) Explanations about the query plan, are full scans of tables necessary with JSON? SubYear > 1970 (has a lot of results) and offset 30k Explanations about the query plan, are full scans of tables necessary with JSON?  Note that there are about 35k+ records in the table "sub_test" with 500+ keys in the JSONB column "json_data" Could you help me to answer them ?


Two Circles and Tangents from Their Centers Problem

Let $\Gamma_1$ and $\Gamma_2$ be two non overlapping circles with centers $O_1$ and $O_2$ respectively. From $O_1$, draw the two tangents to $\Gamma_2$ and let them intersect $\Gamma_1$ at points $A$ and $B$. Similarly, from $O_2$, draw the two tangents to $\Gamma_1$ and let them intersect $\Gamma_2$ at points $C$ and $D$.  Prove that $AB=CD$.  I've done some extensive angle chasing on this but have been unable to make any real progress. Can't decide whether $ABCD$ is supposed to be rectangle (as in my diagrams), a parallelogram or even a trapezium. There is a homothety taking one circle to the other but as far as I can see this doesn't help as we don't have a clearly defined center to this.  Any help/hints would be greatly appreciated.


How to prove useful property of logarithm of generating functional in QFT?

How to prove that $\ln(Z(J))$ generates only? I can't find the proof of this statement, and have only met its demonstrations for case of 2- and 4-point.


I have recently installed ubuntu 15.04 dual boot with windows 10. but my wifi is not enabled in ubuntu...is there need to install wifi driver in ubuntu...or suggest me command to enable wifi..  shubham@shubham-HP-Notebook:~$ lspci -nnk|grep 0280 -A2 04:00.0 Network controller [0280]: Broadcom Corporation BCM43142 802.11b/g/n [14e4:4365] (rev 01)     Subsystem: Hewlett-Packard Company Device [103c:804a]     Kernel driver in use: bcma-pci-bridge shubham@shubham-HP-Notebook:~$


What ways there are to backup repositories for Windows VisualSVN?

At this moment we are using Visual SVN and we are backing up the entire repositories directory for visual svn.  This backs up the entire data for each repository inside our svn engine.  I am curious if I will be able to restore those files in case of an emergency or a disaster?  Any of you have experience with this restoration procedure?  Thanks.


How to sort questions which are unanswered AND featured?  If you want to display unanswered you can type   http://stackoverflow.com/questions?sort=unanswered   and   http://stackoverflow.com/questions?sort=featured   for featured questions.  I've tried to mix them both but it doesn't work at all...


Not enough space in /var/cache/apt/archives, not able to install gparted

I don't have enough space left in /var/cache/apt/archives, thus not able to install "gparted" so that I can increase Actual Size of Ubuntu vdi file. I have already increased the Virtual Size to 100 gig. But to make the Actual size to get increased as per Virtual size I need to perform partition on Ubuntu. Below are the details which can be helpful for you. Also let me know if there is any other way to perform the partition so that Actual size can be increased.  OS Inside my VM: Ubuntu 16.04 LTS VM Box: Version 5.2.8 r121009 (Qt5.6.2) Host: Windows 10


If the letter J is only 400–500 years old, was there a J sound that preceded the design of the letter?

I understand that the letter "J" is relatively new — perhaps 400–500 years old.  But since there has long been important names that begin with J, such as Jesus, Joshua, Justinian, etc., and which predate the introduction of a special letter, does that mean that the "J" sound predated the letter, or were such famous names spelled and pronounced differently?


The difference between 'credit' and 'accredit'?

Both verbs seem to mean the same thing -- to attribute 'X' to Mr. 'Y'. On looking it up, I found:  credit - publicly acknowledge a contributor's role in the production of (something published or broadcast).  accredit - give credit to (someone) for something.  Am I overthinking this, or is there really a difference I should know of?


How can I import an obj sequence into blender?

I have an obj sequence of a fluid simulation from Realflow. I've found a few tools that can import an obj sequence into blender, but most are outdated and don't work. Are there any scripts or plug-ins that can do that?


What is the difference between ∀x∈U : ~p(x) and ~∀x∈U : p(x) ?? Could anybody give any English sentences explaining both of them?


How to show with an Epsilon-Delta proof that the limit does not exist?

Consider the function $f:(0, \infty) \longrightarrow \mathbb{R}$ $$ g(x) = \frac{1}{x} - \left\lfloor\frac{1}{x}\right\rfloor$$ How can I show that the $ \lim_{x\to 0} \frac{1}{x} - [\frac{1}{x}]$ does not exist?


Bash script to wait for a process to finish on multiple servers

I wanted to ssh to multiple servers remotely and check whether any processes running on those servers and wait until the process to get finished. I have written the below code but this checks only for the first ip in the file(ip.txt) since I added 'continue' statement. I need to modify this code.     while read IP   do     ssh ubuntu@$IP "pgrep -f pattern"     if [ $? -eq 0 ]; then        echo "Process is running"         sleep 10        continue     else        echo "Process is not running"     fi   done < ip.txt


Prove that A is invertible if $A^2 - 4A -7I = 0$.

The $2 \times 2$ matrix $A$ satisfies    $$A^2 - 4A -7I = 0,$$   where $I$ is the identity matrix. Prove that $A$ is invertible.  I'm not sure how to do this. Help would be appreciated.


I have enum class   public enum PaymentType {      /**      * This notify type we receive when user make first subscription payment.      */     SUBSCRIPTION_NEW("subscr_signup"),      /**      * This notify type we receive when user make subscription payment for next      * month.      */     SUBSCRIPTION_PAYMENT("subscr_payment"),      /**      * This notify type we receive when user cancel subscription from his paypal      * personal account.      */     SUBSCRIPTION_CANCEL("subscr_cancel"),      /**      * In this case the user cannot change the amount or length of the      * subscription, they can however change the funding source or address      * associated with their account. Those actions will generate the      * subscr_modify IPN that we are receiving.      */     SUBSCRIPTION_MODIFY("subscr_modify"),      /**      * Means that the subscription has expired, either because the subscriber      * cancelled it or it has a fixed term (implying a fixed number of payments)      * and it has now expired with no further payments being due. It is sent at      * the end of the term, instead of any payment that would otherwise have      * been due on that date.      */     SUBSCRIPTION_EXPIRED("subscr_eot"),      /** User have no money on card, CVV error, another negative errors. */     SUBSCRIPTION_FAILED("subscr_failed");      private String type;      PaymentType(String type) {         this.type = type;     }      String getType() {         return type;     } }   When I try to create enum :  PaymentType type = PaymentType.valueOf("subscr_signup");   Java throws to me error :  IllegalArgumentException occured : No enum constant models.PaymentType.subscr_signup   How I can fix this?


The logout option does not log me out, the site just visually "shows" me as being logged out

When I click "log out" the site shows me as being logged out, but I can log back in again by just choosing "Google" option from the log in page. I'm not taken to google.com to enter email/password again.    I've tested to repro, as below.     Before starting each test, I started with a clean browser - no cache, cookies, history - I wiped everything "log out" was done by the drop down menu OS: Debian 8 Browser: Iceweasel 31.8.0     TEST 1   Clicked "log in" on MSE Redirected to MSE login page (3 options) Clicked "Google" Redirected to google.com (login form) Entered credentials, was redirected back to MSE (was logged in) Clicked "log out" on MSE Redirected to log out confirmation page (clicked "log out") Redirected back to main MSE page shown as being logged out Click "log in" Clicked "Google" on login page Am logged in     The problem  After logging out and the site showing me I am no longer logged in, then clicking "log in" I am not redirected to Google to enter my credentials (email/password), when I should be as I had previously clicked "log out" on Stack site.    This means if I click "log out", someone/anyone with access to my computer can click "log in" and then click "Google" and are logged in to my account. I don't have this security issue personally, but many users might with shared devices, public computers, shared work PCs, etc.    Regardless of potential users this affects, I would have thought clicking "log out" would mean if I click "log in" on the same browser I would have to enter my credentials again with Google.      Other tests  TEST 2  The same happens on Stack Overflow following "TEST 1" exactly (so this not MSE specific).    TEST 3  It doesn't matter which site I log in and out of at all. Once I've been logged in, after clicking "log out", I can click "log in" and choose "Google" and without having to enter my credentials I am logged in to all sites again.    Even if I log out on one site, go to a site I've not been to yet, and click "log in" there.    Other  I don't have a Facebook or Stack account, only log in through Google, so cannot confirm if this is specific to Google auth or not.      Cookies  (This is mostly info Stack will use if needed/if it helps).    Based on TEST 1.    Before starting TEST 1:    0 cookies.    After logging in to MSE first time:    All cookies have the same following info:  Host: .meta.stackexchange.com Path: / Expires: At end of session Secure: No   Individual cookies (all contained the above info, but removed from below to shorten list; also removed "value" as it's pointless info):    Name: __cfduid HttpOnly: Yes  Name: __qca HttpOnly: No  Name: _ga HttpOnly: No  Name: _gat HttpOnly: No  Name: acct HttpOnly: Yes  Name: prov HttpOnly: Yes   After clicking "log out":    The same as above except cookie "acct" was no longer there, and an additional one only appeared after I'd clicked "log out":    Name: gauthed Value: 1 Host: meta.stackexchange.com Path: / Expires At end of session Secure: No HttpOnly: No   When I log in again (having logged out but now without having to re-enter credentials to log in):    "gauthed" is gone and "acct" returns.    "acct" is a different value to what it was when I was initially logged in.    The cookie "values" when I was first logged in are the same as when I have clicked log out (except for "acct" as that has gone) and the same as when I log in the second time (except "acct" which changes).


Very simple question: I'm looking for the symbol that indicates that two worlds from 2 different Kripke-models are bisimilar, that there is a bisimulation between those two.  In most articles a left-right-arrow with a line below is used.


If a comment appears to accept an answer, a one time dialogue should ask the user whether he wants to accept the answer

A modest idea to help accepted answers be "Accepted", might be to script the comments, that if the asker says something like,   Thank you; that solution worked perfectly.   The script would check for this and similar strings, check to see if the user is "New" or has a long history of never accepting answers, and then pop up a small one time ever dialogue stating,   Did the answer provided here answer your question?  Yes | No   And if he clicks yes, scroll the page up, flash the accept answer icon, and ask him to accept it, stating that it helps keep the stack exchange site clean etc~


My click function only works for the first part of the jquery and not the second. Why won't it let me click the newer left image when it's in place

I am creating a image carousel where the other images hover behind the focused one. As you can see in my fiddle the click event works when you click the first image to the left, but not for the next image that appears there. Any inclination as to what I'm doing wrong?  I am new to jquery and I'm sure there is an easier way to do this but I'm trying to figure it out and I am getting stumped every time. Here is my fiddle...

   .position-1 {     position: absolute;     left: 30%;     transform: scale(1.1);     box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19); } .position-2 {     opacity: .4;     position: absolute;     z-index: -2;     left: 10%; } .position-3 {     opacity: .4;     right: 10%;     position: absolute;     z-index: -2; } .position-4 {     opacity: 0;     z-index: -10;     left: 30%;     position: absolute; }  $("#content-2.position-2").click(function() {   $("#content-2.position-2").addClass(" position-1");     $("#content-2.position-2").removeClass("position-2 ");     $("#content-3.position-3").addClass(" position-4");     $("#content-3.position-3").removeClass("position-3 ");     $("#content-4.position-4").addClass(" position-2");     $("#content-4.position-4").removeClass("position-4 ");     $("#content-1.position-1").addClass(" position-3");     $("#content-1.position-1").removeClass("position-1 ") }); $("#content-4.position-2").click(function() {   $("#content-4.position-2").addClass(" position-1");     $("#content-4.position-2").removeClass("position-2 ");     $("#content-2.position-1").addClass(" position-3");     $("#content-2.position-1").removeClass("position-1 ");     $("#content-1.position-3").addClass(" position-4");     $("#content-1.position-3").removeClass("position-3 ");     $("#content-3.position-4").addClass(" position-2");     $("#content-3.position-4").removeClass("position-4 ") });


Story about a boy who could wish to be someone else and would gain their skills

Young adult novel, that I read roughly 20 years ago. The main character was a teenage boy who discovers that he can wish to be someone and he would gain their skills, though he still keeps his own body (however, that doesn't seem to be a limitation).   He's playing a baseball game, and says, "I wish I was Babe Ruth(1)" and is suddenly able to play really well. His power lasted a limited time, maybe 90 minutes, and once he wishes to be someone, he can't wish to be them again.  I think his name might have been Asher or Ashton. There was also a scene in a zoo, and there might have been a picture of him at the zoo on the cover, but I'm not sure. It seemed like it was a part of a larger series, but I only ever read this book.  1 It might not have been Babe Ruth, the name meant nothing to me at the time, but I'm pretty sure it was a baseball player of some kind.


File has different name in terminal and Finder

I've just downloaded the driver for my preferred trackball from Logitech. In the Finder, the Installer's filename is Logitech Control Center Installer.app. In the Terminal, ls shows LCC Installer.app. How did this happen?


Linear regression with non-symmetric cost function?

I want to predict some value $Y(x)$ and I am trying to get some prediction $\hat Y(x)$ that optimizes between being as low as possible, but still being larger than $Y(x)$. In other words: $$\text{cost}\left\{ Y(x) \gtrsim \hat Y(x) \right\}  >> \text{cost}\left\{ \hat Y(x) \gtrsim Y(x) \right\}  $$  I think a simple linear regression should do totally fine. So I somewhat know how to implement this manually, but I guess I'm not the first one with this kind of problem. Are there any packages/libraries (preferably python) out there doing what I want to do? What's the keyword I need to look for?  What if I knew a function $Y_0(x) > 0$ where $Y(x) > Y_0(x)$. What's the best way to implement these restrictions?


I want to show that if the natural numbers $a,b \in \mathbb{N}$ are such that $\frac{a^3+1}{b+1}+\frac{b^3+1}{a+1} \in \mathbb{N}$, then, necessarily, $\frac{a^3+1}{b+1} \in \mathbb{N}$ and $\frac{b^3+1}{b+1} \in \mathbb{N}$.  I have thought the following.  We are given that $\frac{a^3+1}{b+1}+\frac{b^3+1}{a+1} \in \mathbb{N}$.  This means that $\frac{a^3+1}{b+1}+\frac{b^3+1}{a+1}=k, \text{ for some } k\in \mathbb{N}$.  We also have that $b+1 \mid a^3+1$ and $a+1 \mid b^3+1$, right?  So does it suffice to reject the cases that $a^3+1=k_1(b+1)$ and $b^3+1=k_2 (a+1)$ for negative $k_1, k_2$ ? If so, then we pick all the possible combinations and want to get a contradiction from the fact that $\frac{a^3+1}{b+1}+\frac{b^3+1}{a+1} \in \mathbb{N}$, or not?  Or do we show somehow else that $\frac{a^3+1}{b+1} \in \mathbb{N}$ and $\frac{b^3+1}{b+1} \in \mathbb{N}$ ?


Uncover lines of an align environment with beamer

Is there any way to uncover equation-lines of an align* environment line per line in a frame conveniently?  somethink like  \begin{align*}[<+->]     a &= b \\     b &= c \\     \Rightarrow \quad      a &= c \\ \end{align*}   or at least only one annotation per line.


Is there any work-around if you are somewhere where images are blocked?

I'm currently working in a bank, and while about 99.7% of the internet is blocked, Stack Exchange thankfully isn't (yet) however imgur is.  It means I can't view images posted alongside questions. The only workaround I have found is to search Google images for the URL, but you get a  which is a bit useless.  Does anybody know any clever tricks for viewing the images accompanying questions when you are somewhere where imgur is blocked?  Are there any plans to route the images stored on imgur through a Stack Exchange URL?


How to determine if an Index is required or necessary

I've been running an auto-index tool on our MS SQL database (I modified a script originating from Microsoft that looks at the index statistics tables - ). From the stats, I now have a list of recommendations for indexes that need creating.  Edit: The Indexes described above take information from the DMV's that tell you what the database engine would use for indexes if they were available and the scripts take the Top x recommendations (by seeks, user impact etc.) and put these in a table.  (Edit above partially taken from Larry Coleman's answer below in order to clarify what the scripts are doing)  As I am new to database admin, and having had a quick search around the net, I am reluctant to take the plunge and blindly add the recommended indexes. However, not being experienced in  the field, I am looking for some advice on how to determine whether the recommendations are necessary or not.  Do I need to run the SQL Profiler, or is it better to examine the code that queries the tables? And do you have any other advice?