Choosing graphics card for ArcGIS 3D Analyst?

in order to make the most of ESRI´s 3D analyst I would like to order an appropriate graphics card. I have been recommended the AMD FirePro V5900 2 GB by someone who doesn´t know much about GIS hence my question here. Does anyone have any experience with 3D Graphics programs and decent hardware? Would this card be suitable for 3D Analyst? What is the most important factor to consider when buying graphics cards for 3D visualization?


Rendering an animation the way 3D view looks

Is there some way to render exactly whats in the camera view in the 3D view? By that I mean just like a screenshot really, all paths, lamps, and cameras, just like things look in the camera view. The reason I can't just take a screenshot is that I need an animation and it would be too cumbersome to take 1000+ screenshots!


(I am on macOS 10.14.6 and iOS 12.4)   I am certain that I have trusted my Mac before. Without the latter trust, I can also access the phone in iTunes.   I have tried reset "Location and Privacy" on my phone. Then   When connecting the iPhone with iTunes running, it asks for the trust and I trust it.  Reboot my Mac and the phone asks for another trust.   Is there some known malware mimics system behavior and steal data from an iPhone?  (I do have installed some pir*ted software recently. That's my fault.)


Inquire the usage of article in this context

I am writing an academic paper and confused about the following usage of "a/an":     with an MAP score below 0.4   Or      with a MAP score below 0.4   While the second one seems more "grammarly" correct, I see frequent usage of the first one. Indeed, if you Google an mAP with Google Scholar, you will find plenty of usages in research papers.   So, which one is more correct? Any advice or suggestion will be appreciated.


Installed new Antivirus Software now Computer is extremely slow! Can I fix that?

Yesterday I installed a new Antivirus as my old licence was not valid anymore. I chose the free . Now the pc is extrem slow. It takes about 8 min to start (before with  it took 2 min). Is there something I can do?


Single sign on between two wordpress website

I have two wordpress website  Ex:abc.com and xyz.abc.com (both are in wordpress).  i want to implement single sign on(SSO) into this two website without using multisite functionality.


I have a shell script that loads all the variables, and then reads a file and I would like the nested input line expanded. I've tried various way with eval, etc and I can't seem to get any of them to work. In my example I've hard coded the variables.   #!/bin/bash #source job.properties file="workflow.xml" user="svc" edge_node_host="google.com" while IFS=: read -r line do     echo ${!line} done < $file   The input file workflow.xml contains the following:  <host>${user}@${edge_node_host}</host>   I would like the echo to output:  <host>svc@google.com</host>


Finding integer solutions of $m^2-n^5 = m - n$

How to list all integer solutions of   $m^2-n^5 = m - n$  Here $m$ and $n$ are some positive integers.  Also, I want to know the name of this type equations (if name exist).   Regards Rosy


I've been trying to learn relativity from Weinberg's Gravitation and Cosmology without very good knowledge of the mathematical background. I am developing it alongside, but there is one particular point where I am stuck and could use help.  While introducing Lorentz invariance and Lorentz transforms,  he starts with defining a coordinate transform which we shall call Lorentz transforms as $$x^{'\alpha} = \Lambda^{\alpha}_{\ \beta} x^{\beta} + a^{\alpha}$$  where $\Lambda^{\alpha}_{\ \beta}$ is subject to the following condition: $$\Lambda^{\alpha}_{\ \gamma} \Lambda^{\beta}_{\ \delta} \eta_{\alpha \beta} = \eta_{\gamma\delta}$$  He assumes it to be true for a while, proves the invariance of proper time. He now assumes arbitrary co-ordinate transforms and invariance of proper time to get the equation,  $$0 = \frac{\partial ^2x^{'\alpha}}{\partial x^{\gamma} \partial x^{\epsilon}}$$   He says the general solution of this equation is the first equation I wrote, and that putting that here would yield the second equation.   I don't see how. What exact mathematical topic I need for this? Or a hint towards actual solution would help too! I am not very much interested in solving this, but even if I can yield the second equation by putting the first one in the third equation, I will be content for now.


How to show that $e^{x+y} = e^x e^y$ by series expansion

I know that $e^xe^y=e^{x+y}$ but I want to show it by expanding the exponentials in MacLaurin Series.  $$ \left(\sum_{n=0}^{\infty} \frac{x^n}{n!}\right) \left(\sum_{m=0}^{\infty} \frac{y^m}{m!}\right) =^? \sum_{n=0}^{\infty} \frac{(x+y)^n}{n!} $$  This is what I have.  I'm not sure what my next step would be since I can't think of a way to combine the two summations on the RHS.


Prove that $2^{2^5} +1 \equiv 0 \mod 641$

$2^{(2^5)} +1 \equiv 0 \mod 641$   From the totient funcion we have:     $2^{32^{20}} \equiv 1$   Thus:     Either $2^{32} \equiv 1$ or $2^{32} \equiv -1$   But how do I prove that $2^{32} \equiv -1$?


Proving $||\vec{a}+\vec{b}|| = ||\vec{a}-\vec{b}|| \iff \vec{a} \perp \vec{b}$

Have some  non-null $\vec{a}$ and $\vec{b}$.      I am trying to prove this to no avail:  $$||\vec{a}+\vec{b}|| = ||\vec{a}-\vec{b}|| \iff \vec{a} \perp \vec{b}$$    If we start with  $$||\vec{a}+\vec{b}|| = ||\vec{a}-\vec{b}|| \implies \vec{a} \perp \vec{b}$$  Our hypothesis is  $$||\vec{a}+\vec{b}|| = ||\vec{a}-\vec{b}||$$  Which tells us that both horizontal sides of this triangle have the same length, so we got an isosceles triangle. Not sure what to make out of that though.  Anyway, the hypothesis is equivalent to  $$\sqrt{(\vec{a} + \vec{b})\cdot (\vec{a} + \vec{b})} = \sqrt{(\vec{a} - \vec{b})\cdot (\vec{a} - \vec{b})}$$  I can't make much out of that.    A hint to begin tackling this problem would be appreciated.


Suppose you write the following PHP code:        $user = $_POST['user'];       $passwd = $_POST['passwd'];       $query = "SELECT * FROM users WHERE user='$user' AND passwd='$passwd'" ;   If the user enters the values 'johnsmith' and 'funnyboy12' for the fields $user and $passwd respectively, then I can understand that the query string which is passed to the SQL server will be         SELECT * FROM users WHERE user='johnsmith' AND passwd='funnyboy12'   And I can also understand that a malicious user who inputs the value admin'# for $user (and does not even bother to input any values for $passwd) will be able to send the string          SELECT * FROM users WHERE user='admin'#' AND passwd=''   to the SQL server. Because everything after the # symbol is taken as comment, the malicious user will therefore be able to gain access to the entire database as the user "admin" without even having to enter a password. But my question is this: Suppose you don't write the codes that you see at the top of this post. Suppose you directly embed your server address, your username, your password, your table name and port identifier like so:          $link=mysqli_connect("boogaloo.boomboom.edu","oceaanview101","koochykoo^%","wooky");   In that case, what sort of a string will be sent to the database? What I mean is , if you have the "SELECT * FROM users WHERE....... statement in your code, BUT you have all the personal information EMBEDDED inside the mysqli_connect() function, how will the SELECT statement know what the username is, what the password is? Can a hacker still cause mayhem if you use the embedded version, rather than $user = $_POST['user']; $passwd = $_POST['passwd'];


Is it ethical to quit your phD aft 6 months for a better phD offer?

I recently graduated from a university in Germany, and I would like to apply for a phD in UK. However, my university provides initial funding for me if I choose to do my phD in the university.   I will apply for my dream schools in UK. However, there will be a one year gap and I have no idea how to use it to enhance my chance of getting admitted in this year. I would like to take the initial funding to work as a phD student in my home university, and quit it if I get admitted. If I wasn't admitted, I can stay in the same lab.  Is it ethical to do this if I don't tell the supervisor of my home university before he accept me ? If I should tell him, how can I prevent hurting his feeling, and let him accept my proposal ?  Thanks !


why name of array "list" first printed as reference and second code printed content of it. int[] list = new int[5]; list[0] = 1; list[1] = 2; System.out.println(list);  It prints the reference [I@4dd8dc3 and i know that i should use for loop to iterate over elements. But why there is in other code gives me the content not the address? Is that specific for generics? ArrayList<Integer> list = new ArrayList<>(); list.add(1); list.add(2); System.out.println(list);  that prints [1, 2]


Eddington once gave the following quote:  The law that entropy always increases, holds, I think, the supreme position among the laws of Nature. If someone points out to you that your pet theory of the universe is in disagreement with Maxwell's equations—then so much the worse for Maxwell's equations. If it is found to be contradicted by observation—well, these experimentalists do bungle things sometimes. But if your theory is found to be against the second law of thermodynamics, I can give you no hope; there is nothing for it but to collapse in deepest humiliation.  What did Eddington mean by this?  Why did he give a special status to the Second Law of Thermodynamics?


Reclaiming value out of a car needing expensive repair

I have a car that I purchased for $6k. It drives fine, but needs a new computer, which will cost $2.8k. The diagnosis already cost $400. Given that doing this repair will be 46% of the car value, I am trying to consider ways to reclaim value for the car. The car is valued by  at $4k. Doing the repair only raises the value (good to excellent) to $4.9k  What options do I have to regain the value of the vehicle? Tax deduction, sale, etc.


It's awkward, but to be completely honest: I never understood what eigenvectors are all about. The only reasons I can think of why they could be interesting are:   They are calculated to diagonalize a matrix (which is useful, because one can calculate faster with diagonal matrices?). If one has a linear transformation that represents a rotation, an eigenvector would be the rotation axis. Everybody says that they are used "everywhere".   But I find all of these reasons unsatisfying. The concept of an eigenvector just seems unnatural to me. I associate this concept with a lot of unmotivated calculations. I would love to hear an honest, down-to-earth explanation of why eigenvectors are interesting.  Note: I am not asking what eigenvectors are, my question is purely about why a pure mathematician (not interested in numerical calculations) should care.


Where is this grey camera shape coming from?

I can't seem to delete this camera shape as I don't know where it's coming from. I don't have any cameras in my scene, nothing in the shader and compositor. The shape only appears in the wire and solid mode. How can I remove this as it's cropping objects outside the shape?


How can I run the jQuery script for new created DOM elements? Look at the following code, if I click the class .elem it will run the code, but if I append new .elem the script won't run.  JS:  $('.elem').on('click', function(){     $('.result').show().fadeOut('slow'); }); $('.add').on('click', function(){     $('.block').append('
Element
'); });   HTML:

Element

Element

Element

Add new

Result
   JSFiddle here:   Any help is hightly appreciated. Thanks you;


Why is my storage partition xxGB, when Disk Utility, and Gparted say otherwise?

I created an ext4 partition to back-up my files to, and partitioned it for 102GB in Gparted using a live USB. After I booted into Ubuntu, I opened Disk Utility, and it said that the partition was actually 108GB. Confused, I opened the mounted partition in Nautilus, and it said the partition was only 98GB.  Which is correct? Did I partition it wrong?


Is it worth switching from Dropbox to a "real" versioning system?

I currently use Dropbox for storing my TeX projects, but have been tempted to switch to a "real" revision control system, like Mercurial or Git, lately.  If it is worthwhile to switch, what would be some tips and pointers? My top switching question is should I use GitLab or Bitbucket to host in a private repository, or should I set up the remote repository on my server?


I have a rooted Samsung s3 mini, android version 4.1.2  How to show the saved wifi password of the router I am connected to?


I find I am frequently uninterested in the weekly seminars in my faculty, which consists of applied mathematics, fluid dynamics, and computer science.  My niche is a small sliver between applied maths and CS.  I know it's valuable to hear talks on things completely unrelated to what you do-- you never know what you'll learn-- but mostly what happens is that I see the first few slides, get bored and/or overwhelmed by too many foreign ideas, and then tune out and work on my own research.  In theory, I know that asking questions helps with engagement, but when a topic is too foreign, I would need to ask questions every slide to properly follow, and that would just be disruptive.  I then wonder why I bother attending at all, but the church-like culture surrounding the weekly seminars (i.e., "you have to go because someone with more power strongly suggests it") keep me there.  How can I get more out of these seminars that I'm obligated to attend?  (Note that responses like "Suck it up" or "Get over it, we all go through this" are not welcome-- I've found that this kind of approach just leads to acrimony.)


What is the difference between "break free of" and "break free from"?  I looked up to the dictionaries, I got the meaning of both while I still don't know how tho use them?  definition: 1\break free of something or someone IDIOM: =  escape (from), leave, withdraw from, extricate yourself from, free yourself of, disentangle yourself from •  his inability to break free of his marriage  2\break something free (from something) to force something to detach from something; to get something out of the hold of something else. I broke the gun free from her grasp. Someone broke the light fixture free from its mounting. free (from something) to force something to detach from something; to get something out of the hold of something else. I broke the gun free from her grasp. Someone broke the light fixture free from its mounting.  3\break free from sb/ sth   no rusult


I'm new to this site, english is not my mother tongue, and I'm just learning LaTeX. I'm basically a noob, so please be indulgent if I break any rule or habits.  I'm stuck at proving the following equation. I suppose I should use the formula for geometric series ($\sum\limits_{k=0}^{n}q^k=\frac{1-q^{n+1}}{1-q}$), and also use somewhere that $e^{î\theta}=cos(\theta)+i\sin(\theta)$  So here is the equation I have to prove : $$\frac{1}{2}+cos(\theta)+cos(2\theta)+...+cos(n\theta)=\frac{sin(n+\frac{1}{2}\theta)}{2sin(\frac{\theta}{2})}$$  Thanks for your help


The scroll wheel seems to malfunction. As I scroll eg down the page will move down, suddenly move up.   It also looks as if it does not scoll a consistent distance. Sometimes one line, sometimes more.  The same problem crops up in Corel Draw when the mouse is used to zoom in and out. It will erratically zoom in and out even the wheel is moved in one direction only.


The Stack class inherits methods from Vector including get(int index); and add(int index, Object element);. In other words: not very stack-like.  The Deque interface implements methods that behave like both a FIFO Queue and a LIFO Stack, hence the acronym "Double Ended Qeueue".   So, in reality, is there any Java class or interface which is designed to create a structure which enforces a LIFO rule?


I want to create a keybinding Ctrl+Alt+Delete on my Ubuntu PC. It should open htop, but I want maximum priority for it. I use this command.  xterm -fullscreen -fa 'Monospace' -fs 13 -e htop   It works well, but when I add priority, it needs root permissions  $ nice -n -20 xterm -fullscreen -fa 'Monospace' -fs 13 -e htop nice: cannot set niceness: Permission denied   When I use sudo, it works, but it runs the whole command as root. How can I run only nice with sudo? It would be ideal if it didn't ask for a password.


Rescuscitaton of "Values of c for which the given quotient ring is a field."

This question is an attempt to resuscitate , which was recently deleted by its author for reasons unknown to Yours Truly. The question runs as follows:  given the polynomial $X^3 + 3X^2 + cX + 3 \in \Bbb F_5[X], \tag 1$ find all $c \in \Bbb F_5 \tag 2$ such that $F_5[X]/(X^3 + 3X^2 + cX + 3)$ is a field. Various approaches to this problem have been made in the linked citing; my own solution is presented below in my answer. Note Added in Edit, Monday 15 June 2020 6:53 PM PST:  In light of some of the comments, I would like to address the issue of differences/similarities between this question and the one linked in the above. End of Note.


root directory permissions changed to 777 by mistake whats now?

By Mistake on Ubuntu 9.04 my colleague has changed the permissions to 777 on root directory (/)  whats the best way to recover the permissions ?


CRS not lining up with base maps from OSM plugin in QGIS

I have QGIS 2.18. I have a selection of routes that I have mapped. Shapefiles of these routes are in WGS84:4326 When I want to map them with a base map of google maps or OSM, it only works when the basemap and the project is in its default WGS84:3857(OTF) projection. But if I change it to 4326 (OTF), the map shifts. Depending upon zoom level, it shifts to different places. At 3857 :  At 4326:  What should I do?


How to delete Facebook messages from other person's inbox

I found a very damaging conversation from years ago in Facebook Messenger. I need the conversation to be deleted from THE OTHER PERSON's inbox. I've read that there's a workaround where if you report your own messages as spam, then deactivate your account for a few hours, it may delete the messages from their inbox. Has anyone tried this recently and know if it works? How fool proof is it? And would Facebook send that person a notification saying that something was reported? Follow up question: Are there any other avenues I can take if the above method doesn't work? I know that deactivating/deleting your account results in it displaying your name as "Facebook User" but that's also not tried and true. Some friends of mine who've deleted their Facebook still have their names displayed in our messaging history. And even still, the chat still remains. I really need the chat to be gone. Please advise!


Macbook is flashing Apple Logo, Forbidden Sign, Question Mark

I have a 13" MacBook Pro, mid 2012, in which I installed a Crucial 1TB SSD, and installed macOS Sierra, then upgraded to High Sierra.  Recently it would not boot after waking up from sleep, then I had to restart.  For 2 times it showed up the forbidden sign. In those situations I turned off and on again and everything worked just fine.  Last time it happened I was not successful, so I tried:   reset NVRAM, holding CommandOptionPRtogether, on statup; reset SMC, holding left ShiftControl Option together, with laptop switched off then turning it on; reset SMC, holding power button for 8sec while turning it on; go to recovery mode ans reinstall macOS High Sierra from USB drive go to recovery mode, format disk, even erasing partition, and creating new ones, then installing High Sierra, go to recovery mode, tried the same as previous fix, but installing macOS Mountain Lion, from local/ROM (I guess?) drive - not from DVD or any wired connect disk.   While booting, system still flashes "Apple logo", "forbidden sign" and "folder with ?", by this same order, sequentially, quickly.  Nothing worked so far. Tried system diagnostics from Apple (turn on + press D), performing exhaustive test, and it is passing all tests.  Does anyone have any clue? Appreciate all the help!


I'm looking for a shapefile for the coastline of the UK.   I'm guessing the Ordnance Survey 'geo-portal' is the best place to get this, but whenever I go to the Ordnance Survey site I get the shakes. (Seriously, trying to find any data on that site is really traumatic. I don't have a spare three days.)  Does anyone just have a simple URL for such a shapefile?


I have a list of complex objects and would like to order it with linq (to objects) according to an "order-by-keyword":  protected override sealed List<IndexViewModel> Order(List<IndexViewModel> listToOrder, string orderBy) {     List<IndexViewModel> indexViewModels;     switch (orderBy.ToLower())     {         case "creator":             indexViewModels = listToOrder.OrderBy(s => s.Creator).ToList();             break;         case "startdate":             indexViewModels = listToOrder.OrderBy(s => s.StartDate).ToList();             break;         ...         default:             indexViewModels = listToOrder.OrderBy(s => s.CreationDate).ToList();             break;     }      return indexViewModels; }   Is there any way to improve my code? Probably by assigning my keyword to linq and let it decide how to sort it?


I'm currently logged into a server via ssh with ssh -Y and running a tmux session. If I start vim and run :colorscheme elflord the color scheme is changed. (Although the colors are not exactly what I would expect although they are I think 256 color. If I create a ~/.vimrc file and put a single line colorscheme elflord  in it then when I run vim it shows no color (just white text) and I cannot change the color with the :colorscheme command.


I have seen this many times. This time, I'm going to write it down and ask.   Use the 10k tools,  See an  I may want to vote to delete. It shows has having 2 delete votes.  Click the link. The answer shows no delete votes.  Downvote the answer. It only shows the downvote.  Refresh the page. Now I can see the 2 delete votes.  Vote to delete it. Now it's deleted.    So, what's up with that?


Recently i came up with this solution for enums in php:      class Enum implements Iterator {         private $vars = array();         private $keys = array();         private $currentPosition = 0;          public function __construct() {         }          public function current() {             return $this->vars[$this->keys[$this->currentPosition]];         }          public function key() {             return $this->keys[$this->currentPosition];         }          public function next() {             $this->currentPosition++;         }          public function rewind() {             $this->currentPosition = 0;             $reflection = new ReflectionClass(get_class($this));             $this->vars = $reflection->getConstants();             $this->keys = array_keys($this->vars);         }          public function valid() {             return $this->currentPosition < count($this->vars);         }  }   Example:  class ApplicationMode extends Enum {     const production = 'production';     const development = 'development'; }  class Application {     public static function Run(ApplicationMode $mode) {         if ($mode == ApplicationMode::production) {         //run application in production mode         }         elseif ($mode == ApplicationMode::development) {             //run application in development mode         }     } }  Application::Run(ApplicationMode::production); foreach (new ApplicationMode as $mode) {     Application::Run($mode); }   it works just perfect, i got IDE hints, i can iterate through all my enums but i think i miss some enums features that can be useful.  so my question is: what features can i add to make more use of enums or to make it more practical to use?


When measuring the AC voltage across a DC battery (CR2032), and I am getting 6v. The DC voltage across it is 3.01 volts. I also tested on a 9 volt battery; again the same thing. I am reading about 20 v AC and 10v DC. I am using MASTECH MAS830L multi meter. I also used another multimeter, and I get the same result.  When I am putting the multimeter probes in the same polarity with the battery, I am getting the AC voltage, but none if I put the probes in reverse polarity.  Why is this happening?


if $a,b$ are natural numbers such that $(1+ab)|(a^2+b^2).$ then $\frac{a^2+b^2}{1+ab}$ is perfect square.please provide some hint.i have tried ,but donot know from where to start


Can't install Unity Tweak Tool - locale errors

I am trying to install Unity Tweak Tool but I can't install it. I am getting the following output when I tried installing it via the Ubuntu Software Center    installArchives() failed: perl: warning: Setting locale failed. perl: warning: Please check that your locale settings:     LANGUAGE = (unset),     LC_ALL = (unset),     LANG = "en_IN.ISO8859-1"     are supported and installed on your system. perl: warning: Falling back to the standard locale ("C"). locale: Cannot set LC_CTYPE to default locale: No such file or directory locale: Cannot set LC_MESSAGES to default locale: No such file or directory locale: Cannot set LC_ALL to default locale: No such file or directory perl: warning: Setting locale failed. perl: warning: Please check that your locale settings:     LANGUAGE = (unset),     LC_ALL = (unset),     LANG = "en_IN.ISO8859-1"     are supported and installed on your system. perl: warning: Falling back to the standard locale ("C"). locale: Cannot set LC_CTYPE to default locale: No such file or directory locale: Cannot set LC_MESSAGES to default locale: No such file or directory locale: Cannot set LC_ALL to default locale: No such file or directory perl: warning: Setting locale failed. perl: warning: Please check that your locale settings:     LANGUAGE = (unset),     LC_ALL = (unset),     LANG = "en_IN.ISO8859-1"     are supported and installed on your system. perl: warning: Falling back to the standard locale ("C"). locale: Cannot set LC_CTYPE to default locale: No such file or directory locale: Cannot set LC_MESSAGES to default locale: No such file or directory locale: Cannot set LC_ALL to default locale: No such file or directory (Reading database ...  (Reading database ... 5% (Reading database ... 10% (Reading database ... 15% (Reading database ... 20% (Reading database ... 25% (Reading database ... 30% (Reading database ... 35% (Reading database ... 40% (Reading database ... 45% (Reading database ... 50% (Reading database ... 55% (Reading database ... 60% (Reading database ... 65% (Reading database ... 70% (Reading database ... 75% (Reading database ... 80% (Reading database ... 85% (Reading database ... 90% (Reading database ... 95% (Reading database ... 100% (Reading database ... 197290 files and directories currently installed.) Preparing to unpack .../unity-tweak-tool_0.0.7-0~201~ubuntu15.10.1_all.deb ... Unpacking unity-tweak-tool (0.0.7-0~201~ubuntu15.10.1) ... dpkg-deb (subprocess): decompressing archive member: lzma error: compressed data is corrupt dpkg-deb: error: subprocess <decompress> returned error exit status 2 dpkg: error processing archive /var/cache/apt/archives/unity-tweak-tool_0.0.7-0~201~ubuntu15.10.1_all.deb (--unpack):  cannot copy extracted data for './usr/share/unity-tweak-tool/monitor-window-snapping.png' to '/usr/share/unity-tweak-tool/monitor-window-snapping.png.dpkg-new': unexpected end of file or stream Error in function:


In such a context as...     I have never applied to job that I cannot do, nor to one that I have not gotten.   vs.     I have never applied to job that I cannot do, nor to one that I have not got.   My guess would be the prior, as      I have never applied to job that I have not gotten.   just sounds "better", to me.    I referred to  - without a clear conclusion as to the correct form.  It said...     Gotten is probably the most distinctive of all the AmE/BrE grammatical    differences, but British people who try to use it often get it wrong.    It is not simply an alternative for have got.     Any help?


I am trying to set up a wifi hotspot using my iPhone XR running iOS 13, which I wish to connect to using my Windows 7 Pro laptop. On the iPhone I go to Settings | Personal Hotspot and switch on, and I have set the name and password of the network. Then on the laptop I can see the name of the network, and I can connect to it.  The problem is that it's showing on the laptop as unconnected to the internet even when the iPhone is definitely connected to the internet because I can browse the web with it. What settings do I need to change?


When trying to log on to the Stack Exchange app (since I have decided to become an active member rather than just browsing like I used to) I get the following error.     'key' is not valid 'access_token', not found.   I know the login info is correct and I have internet. My device is a Samsung Galaxy S5 running Android 4.4.2 and I don't know if the rest is relevant but here it is anyway the Security software version is     MDF v1.0 Release 3   VPN v1.4 Release 1   What do I do?


Why importing transparent images as plane looks like an opaque plane?

When i imported a tranparent png by images as planes, uts looks like an opaque plane and I cant see the picture. Please check this out and suggest me a solution. I am using 2.83 version. I am a beginner in blender. So kindly help


Good evening to everybody here.. My problem is how to write a "tilde" over a symbol (sigma for the precision) in the text mode.. Thank you so much


svchost.exe using lots of memory slowing my PC down

On my Windows 7 32-bit. svchost.exe is using lots of Memory and slowing my PC down big time.  I already have auto update turned off and it is on manual mode.  How can I fix this problem? Thanks


I'm having some troubles recently understand why every set can be well ordered. I mean suppose it's true, then $\mathbb{R}$ can be well orderd, suppose $a\in \mathbb{R}$ is the first, then we will define a function $f:\mathbb{R} \rightarrow \mathbb{N}$ and say $f(a)=1$. Then we will look at $\mathbb{R}\backslash \{a\}$ (it's a subset of $\mathbb{R}$) then there is $b\in \mathbb{R}$ such that he is the first, and we will define $f(b)=2$ and then we can continue like that in contradiction that $\mathbb{R}$ is uncountable. Can you please tell me where is my mistake? And maybe give me a "feeling" about why we can suppose this axiom is true? Thank you very much.


Edit different shader node tree at same time

When using the shader node editor, I would like to be able to view and edit different materials at the same time.  However, even if I split my view into two sections, both set to view the shader node editor, the views are synchronized. So if I'm initially editing Material 1 in both node editors, I'd like to set the second node editor to Material 2.  But when I do that, both editors change to Material 2. The best I can do is enter a node group in one editor while the other remains at the top level node group. How do I edit two materials simultaneously?


Increasing the index by 1 - Converting a code in C to MATLAB

I'm manually converting a code in C to MATLAB.  The code contains assignments like the following,  y[10] = p[32]+(p[31]-p[32])*pow(p_c[0],p[34])/(pow(p_c[0],p[34])+pow(p[33],p[34]));  To use it in MATLAB, I am manually increasing the value of all indexes by 1, since the index in MATLAB starts from 1.  y[10+1] = p[32+1]+(p[31+1]-p[32+1])*pow(p_c[0+1],p[34+1])/(pow(p_c[0+1],p[34+1])+pow(p[33+1],p[34+1]));  Is there an easy way of doing this task? There are around 30 assignments like the above example and I am trying to avoid doing this manually.  Edit 1: Would it be possible to use regular expression? I can copy all the lines of code that contain assignment in a text file. Using regular expression, if I can locate [35](any number) replace with [35+1]. I'm not sure how to implement this in a code.  Edit 2:A sample of other assignments in the code.    y[0] = ct[0]-x[12];     y[1] = ct[1]-1*x[10]-x[23];      y[3] = p_c[6]+p_c[5];        y[4] = p_c[2];       y[5] = x_c[23]+x_c[10]+y_c[1];       y[6] = y_c[0]+x_c[12];       p[0] = 30;       p[1] = 12;       p[2] = 2;     p[3] = 0;     p[4] = 90;       p[5] = 45     dx[0] = FunctionForD(p[67], p[64], p[66], p[65], p[23], x_c[0], x_c[3], p[49])*p[23]-FunctionForA(y[28], y[29], p[23], y[16])*p[23]+FunctionForD(y[30], y[31], p[23], y[16])*p[23]-FunctionForA(p[134], p[133], p[132], p[130], p[131], p_c[2], p[23], x_c[21], x_c[0], p[49])*p[23];   //      dx[1] = FunctionFor2(p[169], p[167], p[168], p[166], p[23], x_c[1], x_c[17], p[49])


I'm wondering how can I set a background color to white instead of alpha?  I've already tried more things.


How can I draw 2 separated lines in the same line, and  write centered text  below them? I tried with this code \begin{flushleft} \rule{7cm}{.01cm}  Name 1 \end{flushleft}  \hspace{1cm}   \begin{flushright} \rule{7cm}{.01cm} Name 2 \end{flushright}  But the output was incorrect because  The lines were drawn in separated lines (and there was enough space to be drawn both in the same line)  The text below them wasn't centered but moved to the left and right, respectively   Can someone please help? Thanks in advance


Search folders for files without getting UnauthorizedAccessException

I have been trying to look for a file in all the possible directories inside "My Documents", but it's throwing the "System.UnauthorizedAccessException" exception because of the "My music" folder.  I thought maybe listing all the folders within "My documents", then getting the path of "My music" and excluding it from being searched would solve the problem, but it failed...   So now I have no idea how to find a specific ".ini" file within all the folders inside "My documents" without getting that exception, can anyone help me please? :)   The code I used:  DirectoryInfo dir = new DirectoryInfo(Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments)); foreach(FileInfo file in dir.GetFiles("*.ini", SearchOption.AllDirectories)) {     listBox1.Items.Add(file.Name); }


How to show that $E[(\hat\theta -\theta)^2]<Var(\bar X)=\dfrac{1}{n}$?

Suppose $X_1, X_2, \dots, X_n$ are i.i.d $N(\theta, 1),\theta_0 \le \theta \le \theta_1$, where $\theta_0 \lt \theta_1$ are two specified numbers. Find the MLE of $\theta$ and show that it is better than the sample mean $\bar X$ in the sense of having smaller mean squared error.   Trial: Here MLE of $\theta$ is $$\hat\theta = \begin{cases} \theta_0, &\bar X \lt \theta_0\\ \bar X, &\theta_0 \le \bar X \le \theta_1 \\ \theta_1, &\bar X \gt \theta_1 \end{cases}$$  I can't show that $E[(\hat\theta -\theta)^2] \lt Var(\bar X)=\dfrac{1}{n}$.


Find $\lim_{n\to \infty}(\frac{n!}{(n+1)^n})^{1/n}$ $$(n!)^2=[1\cdot n][2\cdot (n-1)][3\cdot (n-2)] \cdots [(n-1)\cdot 2][n\cdot 1].$$ Each of the $n$  products $(k+1)\cdot (n-k)$, for $0\le k<n$, is $\ge n$. Thus $$(n!)^2 \ge n^{n} \quad\implies \left(\frac{n!}{(n+1)^n}\right)^{1/n}\ge \frac{\sqrt{n}}{n+1}.$$ Please help to solve it


Why does a car moving in a circular track experience static friction if it is already in motion?

Our physics teacher told us that a car moving in a circular track experiences static friction whose perpendicular component to the tangential velocity acts as centripetal force. But how can static friction act on a moving body? Shouldn't it be kinetic?


Pointwise convergent, increasing sequence

If a sequence of increasing, absolutly continuous functions converges pointwise to a function f, does it follow that f is absolutly continuous? What if it converges uniformly?


Find the equations of the tangent line(s) that are parallel to the line $y= -4x +3$

Find the equations of the tangent line(s) to $\;f(x) = x^3 -4x^2 + 2\;$ that are parallel to the line $y= -4x +3$.  I know the slope is -4 and $f'(x)= 3x^2-8x.$


While loop isn't breaking when break is called

I'm writing a java program that translates hexadecimal into decimal and I ran into a problem with my while loop. I want it to break when the user types "break" into the console (I'm using Eclipse). I think it breaks the loop, but it continues with the last loop before stopping. I think I am using the right function, and if I understand correctly it should stop the code there and break. Ignoring any other issues you might see in this code (I haven't coded in a while and thought this might be a fun challenge), what might be causing this? package hex;  import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.HashMap;  public class HexConverter {          public static HashMap<Character, Integer> conversion = new HashMap<Character, Integer>();     public static char[] hex = {         '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'       };     static {         for(int i = 0; i < 16; i++) {             conversion.put(hex[i], i);         }         System.out.println(conversion);     }          public static void main(String[] args) {         BufferedReader in = new BufferedReader(new InputStreamReader(System.in));         while(true) {             String hex = "";             try {                 hex = in.readLine();             } catch (IOException e) {                 e.printStackTrace();             }             if(hex == "quit") {                 break;             }             System.out.println("didn't quit :(");             int out = 0;             for(int i = 0; i < hex.length(); i++) {                 out += ((int)conversion.get(hex.toUpperCase().toCharArray()[(hex.length() - 1) - i])) * Math.pow(16, i);             }             System.out.println(out);         }     } }


Why can't Yoda speak in proper English grammar?

Yoda, being a Jedi grand master, should have better communication skills given that he is supreme leader among the Jedis. Why can't he learn to speak English properly?


So I made a 3d model of a sword, and when I try to render it, the program automatically smooths everything out.   Basically, I looked around online, and made sure everything smoothing related discussed there was turned off, and they all were, what should I do?


Low quality, but looks salvageable - trying to pick between 'Looks Good' and 'Recommend Deletion'

Doing reviews in low quality queue I often stumble upon weak attempts at answers that nevertheless look like salvageable.  As a rule, these are brief opinions / recommendations that could possibly become of reasonable quality if (note: if) their authors explain why they recommend it as answering the question asked.  Per my reading of , above leaves me two options: either Looks Good or Recommend Deletion. How do I choose between these?   For the sake of completeness, two other options mentioned in guidelines are Edit and Skip. Edit hardly applies, as this would essentially require reading author's mind, not something I am proficient with. Skip doesn't feel right either because I only  when I am unsure, which is not the case when I am strongly confident about my evaluation of the post content (using Skip in cases like this would simply defer decision someone else who will face same dilemma as I, not quite fair).   An example of the post like I talk about is in :     I assume some other languages now have the option of multiple return values.   Interested  can look in LQ queue history  or at  for more examples.    Note a while back, I felt rather strongly in favor of Recommend Deletion. This preference was based on my understanding of the ideas and features introduced to .  I thought, now that author can easily get to their deleted post to improve and flag for undeletion, it looks only natural to vote for removing it while it's not yet OK (heck this could even save them from a couple downvotes while their low quality content is visible and annoys readers).  But closer encounter with the way how deletion works made me wonder if above reasoning is right. When I , I realized that only recent posts are easy to find out.  When deleted post is more than 60 days old, it is quite difficult for author to discover and improve and this basically invalidates what made me believe that Recommend Deletion is so much better.  Update per : current design is such that  reaches the user, except when all reviewers select  in deletion dialog.


I need to open a shapefile from ArcMap in R to use it for further geostatistical analysis. I've converted it into ASCII text file, but in R it is recognized as data.frame. Coordinates function doesn't work as soon as x and y are recognized as non-numeric.   Could you help to deal with it?


Finding Number of Followers of a Tag in the Data Dump

I'm doing a research on the developers' QAs in Stack Overflow, I have checked Stack Exchange Data Explorer and data dumps but I didn't find number of followers of a tag:        There isn't any related data in "Users" and "Tags". Is there any way to access the data except manually fetching from ? (going one by one, hovering etc.)


I'm having an interesting problem with hyperref.  Apparently, when a counter is reset by \setcounter{mycounter}{0} then hyperref always links to the first possible instance of the counter and not the one where the respective label sits.   Check this MWE out:   % !TEX TS-program = xelatexmk \documentclass{article} \usepackage[paperwidth=6in,paperheight=3in]{geometry} \usepackage{hyperref} \hypersetup{colorlinks=true, allcolors=blue, } \newcounter{mycounter}\setcounter{mycounter}{0} \newcommand\countme{\refstepcounter{mycounter}\themycounter}  \begin{document}  First line \countme{} has some interesting text.  The second line \countme \label{onelabel} has \textbf{more} interesting text.  As we saw at line \ref{onelabel} ...  \newpage  A new page brings new numbers \setcounter{mycounter}{0}   A very different first line \countme{} has other interesting text.  The second line \countme \label{otherlabel} has \textbf{different} interesting text.  As we saw at line \ref{otherlabel} ... \end{document}   As you can see in the screenshot below, the pop up preview of the \ref on the second page doesn't refer to the second line with \label{otherlabel} but to the one on the first page (also has the tooltip "Go to page 1" -- in TeXShop).   Am I not understanding something fundamental about hyperref?      The context for all this is an environment that resets my counter to 0 at begin.  And all subsequent \refs to labels in a second or third iteration of the environment point to the very first instance of that environment, not the correct one where the label sits.


I just changed my Operating System to Ubuntu 20.04 from Windows 10. On windows, I used an external software to manage my drivers and update them. But I cant figure out how to do that on Ubuntu. Any help would be appreciated.


Equivalent conditions for a preabelian category to be abelian

Let's fix some terminology first. A category $\mathcal{C}$ is preabelian if:  1) $Hom_{\mathcal{C}}(A,B)$ is an abelian group for every $A,B$ such that composition is biadditive,  2) $\mathcal{C}$ has a zero object,  3) $\mathcal{C}$ has binary products,  4) $\mathcal{C}$ has kernels and cokernels.  A category $\mathcal{C}$ is abelian if it is preabelian and satisfies:  5) every monomorphism is a kernel and every epimorphism is a cokernel.  Define the coimage of a map to be the cokernel of its kernel, and the image to be the kernel of its cokernel. We have the following commutative diagram:    where $\overline{f}$ is the only existing map (because of universality of kernel and cokernel).  I'm having trouble proving the following:     A preabelian category $\mathcal{C}$ is abelian iff $\overline{f}$ is an isomorphism.   The converse is easily shown, I'm having trouble proving $\Rightarrow$...


pgAdmin and PostgreSQL compatibility matrix

Has anyone ever put together a version compatibility matrix for pgAdmin versions and PostgreSQL versions?


I am currently writing papers on the immigration pattern in the US throughout history. I came across a problem that I have never been taught before (I am a ESL speaker) about the plurality of the people of a certain nation.  Would the plural of the people German nationality "the Germans" or "the German"? Is the "s" necessary to turn it into a plural noun? I have this question because I know that the plural of the people of Chinese nationality is "the Chinese" but not "the Chineses."  Is there any rule to this? If so, what would be the plural form for the people of Irish nationality or Indian nationality?


Splitting multiple multi-line cells into new rows

I am working on employee data and the data I  have received comes with two cells (Proj Name and Count of Hours) which have multiple names/ hours in the same cell separated by line breaks. I have looked through the solution presented in this link  but it only appears to work when there is one column with multi-line unlike mine which has more than one which needs to be split.


Interchangeability of present perfect continuous and present perfect

A: Why is your baby's face so dirty?      B: "He _______ (eat) chocolate."   I know the answer is present perfect continuous (has been eating), but what about present perfect (has eaten)? Can we use it in similar situations?  I'm interested in British English in particular.


Evaluation of Sum of $ \sum_{n=1}^{\infty}\frac{\sin (n)}{n}$.

If $\displaystyle S = \sum_{n=1}^{\infty}\frac{\sin (n)}{n}.$ Then value of $2S+1 = $  Using Fourier Series Transformation I am Getting $2S+1=\pi$  But I want to solve it Using Euler  Method and Then Use Logarithmic Series.  $\bf{My\; Try::}$ Using $\displaystyle \sin (n) = \left(\frac{e^{in}-e^{-in}}{2i}\right)$. So $\displaystyle S = \sum_{n=1}^{n}\frac{\sin (n)}{n} = \frac{1}{2i}\sum_{n=1}^{\infty}\frac{e^{in}}{n}-\frac{1}{2i}\sum_{n=1}^{\infty}\frac{e^{-in}}{n}$  Now Using $\displaystyle \ln(1-x) = -x-\frac{x^2}{2}-\frac{x^3}{3}...............\infty$  So Let $\displaystyle S = -\frac{1}{2i}\ln(1-e^{i})+\frac{1}{2i}\ln(1-e^{-i})$  Now How can I solve after that  Help me  Thanks


Send email on single button click for custom object

I want a button on a custom object (which is similar to standard Contact object) to send email. On button click, an email should be sent. I tried with location.replace('/email/author/emailauthor.jsp?retURL=/{!Temporary_Contact__c.Id}&rtype=003&p2_lkid={!Temporary_Contact__c.Temporary_Contact_Email__c}&template_id=00X1F000000DbdC&p5=&save=1'); but on button click, an email screen page appears to select additional details. Like this- I do not want this screen. I appended &save=1, yet the screen appears. Please someone guide me how to send email just on a single button click!  Thanks in advance.


If $mn+1$ is a multiple of $24$, prove that $m+n$ is also a multiple of 24.

Please use UK pre-uni methods only (at least at first). Thank you.


How many ordered quadruples $(w, x, y, z)$ of non-negative integers are there such that $wxyz = 288$? Why?

I found the prime factorization  $$288 = 2^5 \cdot 3^2$$  and then I tried to set up some algebraic equations, but got stuck. How would we proceed so that we get the answer? Especially when we are only looking at non-negative integers. Any help?


The following relation is mentioned in my text book for semiconductors in thermal equilibrium.  $$n_e ×n_h = n_i^2$$  $n_e$ stands for the number of electrons.  $n_h$ stands for the number of holes.  1) Does anyone know what $n_i$ stands for?  2) Can anyone give me intuition behind this formula, or explain how it came?   (I've already guessed that $n_i$ might stand for total current carriers.  But then would have to be $n_h$+ $n_e$, right? So I think that's wrong.)


Im asking this question just to make sure or get some idea how much the server can take or when it going to fail, i have an Amazon EC2 instance with 8 GB RAM AND 2 VCPU,and it run some php script that only return json response no media file or any other type of data on the server ,, only have mysql database on it ,, each request to server return 16KB to 20KB from mysql the query i used it not that complex and it not that easy it fairly medium ,,let assume that the response size is 20KB with unlimited bandwidth , my question how many http request that server could handle i don't want an accurate answer ,, just approximation so i can get an idea about how much one instant could handle


Fantasy book about a boy who crashes into a world

If my memory serves correctly, it was something along the lines of this: ->   Boy hurtles into the world, crashing and losing his memories as a result.  He's a pirate? Somebody on a floating city takes him in, and he serves as an assistant. He goes north to this forest that's incredibly dangerous at night and goes to a slave market and fights in a gladiator ring. He escapes and falls down this hole into the people-group's disposal system, which is like a giant everything-eating organism (excuse my phrasing, please) The book had illustrations. Black-and-white ones, and was in a series. This may have been the third or fourth book. I think the binding was tan, but I'm not too sure. Miscellaneous details: There's a floating/or on a mountain academy-city; man-eating snails; giant, man-eating forests at night; a generally dark tone; swamps?; most likely published in the late 90's ('98 and up) and early 2000's, because I remember reading this in 2005 or 2006.


Movie where a man runs with a cam in his hand

Guy runs with a cam in his hand while some guys in suits tries to kill man. Eventually the man escapes from these guys but right after that a police car stops at him and a cop kills that guy.  Things that I remember from the movie   American movie around 2000-2010. The guy with camera in his hand is probably an African American Actor. I think the someone will shoot a congressman while he is trying to address a large crowd. There is a guy who wears a black mask. There will be a blast and few of the bad guys enters as firemans and while entering ine of these bad guys will be called to save a random guy who is about die.


How to change file path location in java.io.File object

The question says it all. I have a File object which is pointing to /home/user/filename1.  If I call file.getAbsolutePath() then it would return /home/user/filename1  My question is that -    Can we change the path inside file object to a different location? If yes, then how?   Thanks


What should I do when a predatory conference will not listen to us and the journal might retract our paper?

I was in my first semester that a professor asked me for a collaboration with someone else. We have started the project but because of Mr. C bad behavior and lack of contribution our professor fired him from the project.  Consequently, we had published a paper 2 years ago based on that project. After a few months, we have accidentally found out that the initial draft of the paper in another language has been published at a conference with Mr.C name and his wife on the conference proceeding. It is worth mentioning that we kept our data and updates of drafts in a shared Dropbox account that Mr. C had access to. We emailed to the conference and told them to remove the conference proceeding because it had been uploaded without our permission, so they removed it from the conference proceedings. Few days after that the journal that has published our paper sent us an email saying that someone (that we know its Mr. C) told them that our paper has published before and it is a case of a redundant publication and plagiarism.  Then we have told everything to the journal about the situation.  Unfortunately, because Mr. C have powerful connections in government he was able to make the conference proceeding available once again! now the conference won't listens to us and they don't answer us.  The conference proceeding is in another language but the context is about 80% the same as the journal paper that is in English! We don't know what to do.  We did not hear about this case from the journal for 3 months now.   Is it possible for the journal to retract our paper at this point because of the duplication and redundancy or plagiarism? What should we do?  UPDATE: The conference website is down known and not available anywhere at the moment but the conference has sent the proceedings to an indexing website which is only available in our native language. Also in that website proceedings can be bought only with the X currency and it is not an international indexing website.   Still, I am scared that there might be a possibility for the journal to retract our paper due to duplication! Is it possible?


Let $G$ be an infinite group and $H\le G;\;K\le H$. Show that $K\le G$ and $[G:K]=[G:H][H:K]$.

$G$ is an infinite group. $H$ is a subgroup of $G$ of finite index and $K$ is a subgroup of $H$ of finite index. Prove that $K$ is a subgroup of $G$ of finite index and $[G:K]=[G:H][H:K]$.  This is a problem from my Algebra book on the topic Cosets. When $G$ is finite this is very easy, but when $G$ is infinite how to show that.


QGIS Shortest Route Network Analysis using multiple features

Below are the steps to find the shortest route between two points in a road network    Is it possible to find the shortest route using the road network, but from a point feature where the point doesn't sit on a road, to the nearest road and follow the shortest route to a point on another feature? So three features, initial start point, road and end point.  If so, can this be done for multiple routes that all end up at the same end point? So the start point feature will have many points, and follow the shortest routes to one endpoint.


After installing eclipse in Ubuntu 18.04 using synaptics, application is unable to launch, showing error

I am using Ubuntu 18.04. I used synaptics to install eclipse. There I selected default eclipse and default dependencies as marked by synaptics, applied them and then closed synaptics.  Now when I press the window key in keyboard and type eclipse in search bar, the eclipse icon appears. On clicking on the icon, the eclipse application is unable to start. Instead I get a pop up menu saying   An error has occurred.  See the log file /home/username/.eclipse/org.eclipse.platform_3.8_155965261/configuration/1528986311505.log  Also if I try to open eclipse from terminal, same thing happens  The command   java -version   gives the result  openjdk version "10.0.1" 2018-04-17 OpenJDK Runtime Environment (build 10.0.1+10-Ubuntu-3ubuntu1) OpenJDK 64-Bit Server VM (build 10.0.1+10-Ubuntu-3ubuntu1, mixed mode)   The content of the log file is:  !SESSION Thu Jun 14 19:55:11 IST 2018 ------------------------------------------ !ENTRY org.eclipse.equinox.launcher 4 0 2018-06-14 19:55:11.579 !MESSAGE Exception launching the Eclipse Platform: !STACK java.lang.ClassNotFoundException: org.eclipse.core.runtime.adaptor.EclipseStarter         at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:466)         at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:566)         at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:499)         at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:626)         at org.eclipse.equinox.launcher.Main.basicRun(Main.java:584)         at org.eclipse.equinox.launcher.Main.run(Main.java:1438)         at org.eclipse.equinox.launcher.Main.main(Main.java:1414)   ~                                              So how to fix this?


Can't get repository information in order to upgrade 10.10 to 11.04

After delaying for quite a while, I'm trying to upgrade from 10.10 through to the current version. When I hit the "check" button in Update Manager, I get the following error:  Failed to Download Repository Information. Check your internet connection.  I can't post the full list of what it failed to fetch as the website won't let me post more than 2 links, but here is the first part:     W:Failed to fetch   /main/source/Sources.gz  404  Not Found [IP: 91.189.91.15 80]   , W:Failed to fetch   404  Not Found [IP: 91.189.91.14 80]   etc.     , E:Some index files failed to download, they have been ignored, or old ones used instead.   These are not packages I can disable from "other software". How can I fix this so that I can upgrade?


How Much Weight does a Conference Paper carry compared to a Journal Publication?

I am working on some stuff for a paper.  I have recently seen an advert for a conference calling for papers and I feel like I currently have enough stuff that I could submit it to this conference and get it published.  However, it looks as if the paper would be published in the 'conference proceedings' as part of a series by Springer.  Does this mean that the publication would only be classed as a 'conference paper' and do conference papers really carry the same weight as journal publications?   (It's worth mentioning that the paper would be peer-reviwed if I sent it for the proceedings of this conference). If not, my idea would be to wait until I have added more to what I am working on and then send it to a journal.  Edit: I am aware that there are other questions asking if a conference paper should be compared to a journal article.  I am asking if in this case the publication can be listed as a journal article as it will be peer-reviewed by experts and published in Communications in Computer and Information Science, so I am wondering if this allows a work-around for me to class it as one of my journal articles.  The link below provides more information: I would like to know if I can list it as a peer-reviewed journal paper or if I will have to call it a conference paper, as these are not the same to me.    Second edit: To make it clear the paper would be a physics paper on the subject of quantum mechanics and would only be published in CCIS as it represents a surprising application of a particular piece of computer software.  My issue is that I don't want to see the paper as a novelty item when I have been thinking about and working on the physics going into it for years.  The use of software in it is really just a matter of convenience as there is a bit where it it easier to use software to generate a numerical example illustrating the general theory I have been talking about in a concrete case.  Third edit: Turns out the publication could only be classed as a conference paper so I will add to what I have got and send it to a journal, as I don't regard a conference paper as being equivalent to a journal publication (or at least, not in physics).


My friend heard that tea is worse for drinking than water because "cells have a special membrane and tea has special supplements and membrane doesn't let tea pass and this is why skin is dry even when you hydrate with tea a lot", something about "lipid bilayer".  Is there is some nice scientific article on water andd tea difference to human organism?


$f$ irreducible plus $(x-\alpha)| f$ and $(x-\alpha)|f'$ implies $f|f'$

Problem: Let $f$ be an irreducible polynomial in $F[x]$. Prove that $f$ has no multiple root in any field extension of $F$ unless the derivative $f'(x)$ is the zero polynomial. My work so far: I'm assuming that $f'(x)=0$ and I want to should that $f$ has a multiple root. I know that if $f$ has a multiple root $\alpha$, then $\alpha$ is a common root of $f$ and $f'$. In general, for $f(x)=a_nx^n+a_{n-1}x^{n-1}+\cdots +a_0, f'(x)=na_nx^n{n-1}+\cdots +a_1$ and $deg{f}\geq def{f'}$. If $f$ has a multiple root, then there is a factor $(x-\alpha)^k$ s.t. $k\leq n$ and $(x-\alpha)|f$ and $(x-\alpha)|f'$. I know I want to do something s.t. I can say $deg{f}\leq deg{f'}$ to get their degrees to be equal. In the textbook I'm using (Algebra by Artin, pg 458), it says "Since it is irreducible, $f$ will have a nonconstant factor in common with another polynomial $g$ only if $f|g$." I'm struggling to wrap my mind around how I can see $f|g$. In general, $a|b$ and $a|c$ doesn't imply $b|c$. Thanks in advance!


Solve the trig equation $\cos\theta − \sin\theta = 1$

Solve the given equation. Let k be any integer.  $$\cos θ − \sin θ = 1$$  What do I do? Am I allowed to square everything? I was thinking about squaring everything and then substituting in $1-\sin^2θ$ for $\cos^2θ$ and then factoring out a $\sinθ$, then setting both equations $=0$ but I'm not sure if I am allowed to square everything.


This is the question about integration. I want to know how to approach this question.

My solution makes same loop, which eventually makes the equation as 0 = 0 form.


Will Game of Thrones end like A Song of Ice and Fire?

The Game of Thrones show has deviated from the A Song of Ice and Fire books and has gone beyond where the books left off while the author is still writing them.   Has there been any indication that Game of Thrones will have the same ending that George R.R. Martin planned for his books? Or could the books have a completely different ending that the show (like the Night King winning)?  I believe that Martin (like many writers) had the idea for the overall story and the (possibly/hopefully crazy twist) awesome ending since he originally conceived it. So even though he's behind the show in writing, he still had an ending planned that everything has been building up to. Is the TV show going to use the same ending that Martin had planned all along or have they created their own ending to the story?  Obviously we won't know for sure until the books are finished (i.e. never someday) but I was hoping that either HBO or Martin has commented about this.   Maybe Martin will just have Dean Allen Foster "finish" the last ones for him based on the scripts.


How to add thickness to transparent material from image?

I have this object with a material I created with an image, how can I manage to add thickness to it ? I already tried adding the solidify modifier but could not get any result...   Here is a screenshot from Blender, as you can see the object is totally flat. How can I give it some thickness ?  Thanks,  Edit: Here are screenshots with "Only Rim" checked and not checked to give a better idea of what I get but is not good


How to make an image center (vertically & horizontally) inside a bigger div

I have a div 200 x 200 px. I want to place a 50 x 50 px image right in the middle of the div.   How can it be done?  I am able to get it centered horizontally by using text-align: center for the div. But vertical alignment is the issue..


There is a circuit breaker in every home, which trips the switch if there is a fault somewhere in a circuit. And there is a GFCI outlet/switch which also trips if there is a fault downstream. If circuit breaker is there, then why do we need GFCI ? May be dumb question but I am dumb when it comes to electricity.


What exactly is flash sync speed, and should it be a factor in a buying decision?

What exactly is flash sync speed and should it be a factor in a buying decision?


Intersection and union of simply connected domain

I have some basics concept that, in $\mathbb{C}$, a "simply connected domain $D$" is a region in $\mathbb{C}$ with no holes. I am not sure whether it has various formal definition , but the one used in my complex analysis class looks very complicated. I barely understand what it means :  $\textbf{Definition}$ Let $\gamma_0, \gamma_1$ be two continuous closed path in a domain $D \subseteq \mathbb{C}$ parameterized by $I = [0,1]$;that is, $\gamma_i(0) = \gamma_i(1)$ for all $i = 0, 1.$ We say $\gamma_0, \gamma_1$ are $\textbf{homotopic as closed paths on D}$ if there exists function $\delta : I \times I \rightarrow D$ such that   $1) \ \delta(t,0) = \gamma_0(t) \ \forall t \in I \ \ $    $2) \ \delta(t,1) = \gamma_1(t) \ \forall t \in I \ \ $     $3) \ \delta(0,u) = \delta(1,u) \ \forall u \in I.$  A continuous closed path is $\textbf{homotopic to a point}$ if it is homotopic to a constant path(as a closed path).  $\textbf{Definition}$ A region $D \subseteq \mathbb{C}$ is called $\textbf{simply conected}$ if every continuous closed path in $D$ is homotopic to a point in $D$.  $\textbf{Problem :}$ 1) Let $D_1, D_2$ be simply connected plane domains whose intersection is nonempty and connected. Prove that their intersection and union are both simply connected.  2) Let $P, Q$ be smooth functions on a domain $D \subseteq \mathbb{C}$, Find necessary and sufficient condition for the form $P dz + Q d\bar{z}$ to be closed.


How does multiclassing affect the damage scaling of Hexblade's curse?

So,I am playing a multiclass character with level 14 in fighter and level 1 in Warlock. Now Hexblade's curse damage depends on player's proficiency bonus.My level 15 character's proficiency bonus is +5 but a level1 warlock's proficiency bonus is +2. So, which proficiency bonus should I add as hexblade's curse damage?


Make font size bigger than max limit of 1296 pt in Adobe Illustrator (2015)?

For some reason and for many years there's a limit for font size in Illustrator. It is 1296 points max, so you can't go bigger without converting type to outlines first. Converting to outlines means you will not be able to edit type parameters and text it-self. Don't know how about you, but this makes me sad in non-destructive editing era.  What's your workaround?


A fair while ago (~ 2004) I was told to always create a separate partition for the boot directory.  And since then I always have.  But after reading a few questions about partitioning questions, I'm curious.  Do I still need a /boot partition?  Note:  If helpful, I'm dual booting (Win XP or 7) & Ubuntu 10.04.  I also have one partition (using ext2/3) which I use to share files between the two operating systems.


For an odd prime $p$, $\;p =1 \pmod 4,\; \;x^2+1 = 0 \pmod p$

$$\text{ If } p \neq 2 \text{ is a prime, we know that: }$$ $$\left(\left(\frac{p-1}{2}\right)!\right)^2 \equiv (-1)^{\frac{p+1}{2}} \pmod p$$  According to this,prove that: $$p \equiv 1 \pmod 4 \Rightarrow x^2+1\equiv 0 \pmod p \text{ has a solution}$$ $$\text{Which is the solution?}$$ Solve: $\displaystyle{ x^2+1 \equiv 0 \pmod{29} \text{ , } x^2+1 \equiv 0 \pmod{37}}$  Inversely,prove that $x^2+1 \equiv 0 \pmod p \text{ has a solution } \Rightarrow p \equiv 1 \pmod 4$  I have thought the following:   $$\left(\left(\frac{p-1}{2}\right)!\right)^2-(-1)^{\frac{p+1}{2}} \equiv 0 \pmod p \Rightarrow \left(\left(\frac{p-1}{2}\right)!\right)^2+(-1)^{\frac{p+3}{2}} \equiv 0 \pmod p $$   As $p=4k+1$, $(-1)^{\frac{p+3}{2}}=(-1)^{\frac{4k+4}{2}}=1$  So,we have: $$\left(\left(\frac{p-1}{2}\right)!\right)^2+1 \equiv 0 \pmod p$$  So,we conclude that $x^2+1 \equiv 0 \pmod p \text{ has a solution , this one: } (\frac{p-1}{2})!$  Is it right or have I done something wrong?   So,are the solutions of $x^2+1 \equiv 0 \pmod{29} \text{ and } x^2+1 \equiv 0 \pmod{37}$,these one: $\displaystyle{(14)! \text{ and } (18)! \text{ respectively}}$ ? Are these the only solutions?? How can I show the inverse?


How to center content, vertically and horizontally, in inline-block-div?

After making two div elements inline-block, and then vertical-align: top, I'm left with an image which was originally centered both vertically and horizontally within the div, at the top left-hand side. Here is the code:    .soundscapeImgDiv {   /* background-color: white; */   background-image: url('../images/testImg.png');   background-size: 100%;   background-repeat: no-repeat;   width: 260px;   height: 85%;   margin-left: 10px;   margin-top: 12px;   border-radius: 12px;   /* text-align: center; */   display: flex;   align-items: center;   justify-content: center;   display: inline-block;   vertical-align: top; }  .portalInfoDiv {   background-color: White;   margin-left: 10px;   height: 71px;   width: 56%;   display: inline-block;   vertical-align: top; }

Shanghai, China night lols

somethingsGuy • 5 days ago

     How can I center it like before?  Current Vs intended:


Apex Framework / library for consuming REST services

To consume REST services there is a lot of boilerplate code needed:   Build Apex Objects to model the responses Code to deserialize REST responses to those classes Handling of HTTP requests, responses and errors ...   Did anyone come up with patterns or best practices codified into an open source library or framework that one could just reuse in a similar project without reinventing the callout-wheel over an over again?  Like the zillions of trigger-frameworks that exist as repos on Github...


What happens to net acceleration in a non-inertial reference frame with cenripetal force?

In a non-inertial reference frame, the centripetal force is balanced by a centrifugal force. Therefore, shouldn't the net acceleration be zero? Yet, you still feel an acceleration outwards? Why is that?


I recently switched from Blender 2.79 to 2.91.2 and I use halo materials a lot ... I seem to be confused on how to get halos (for particles) in 2.91.2  Tip would help.  Thank you.


How to draw the graph of $F(x,y)=0$ for given $F$.

Are there general method for drawing the graph of $F(x,y)=0$ for given $F$? What if $F$ is a polynomial?


What are those small red triangles on the mini map?

Sometimes when I walk around the world, small red triangle appears on the mini map, next to some other marker (e.g. plant or building) then disappears when I keep walking:        What do these triangles mean?


$\sum a_{n}^{2}$ converges $\Rightarrow\sum \frac{a_{n}}{n}$ converges.  any hints?


I am trying to launch a cron job every hour (an interactive system upgrade).  The code that does the actual update ( a no-password sudo yum update) is in my .zshrc (I use zsh as my shell). To launch zsh, I am invoking a new terminal process, so I have /usr/bin/gnome-terminal as the process. I have an email from cron saying that the command errorred out with "Failed to parse arguments: Cannot open display:" This is strange, since the command works fine from a terminal.  How do I fix this problem?


I've been working on this problem from Lang's 'A First Course in Calculus'.   I'll restate the problem in full.  Prove the following inequalities for all numbers x, y. Then, the problem I'm having trouble with under this header is:  $$ |x+y| \ge |x|-|y| $$  It gives as a hint to write x = x + y -y, and apply Theorem 2.3 (If a, b are two numbers then |a+b|<= |a| + |b|), together with the fact that |-y| = |y| but I haven't been able to successfully apply that information to solve it.   Here is my initial attempt to apply the advice.   $$ x = x + y - y $$  Then, stating Theorem 2.3:  $$ |x+y| \le |x| + |y| $$  Now, substituting x:  $$ |(x+y-y) + y| \le |x+y-y| + |y| $$  I'm not really sure where to go after this point, but I think these are probably the correct steps so far to reach the answer. I know I'll need to get |x| - |y| on the right side and flip the inequality sign (multiplying by negative one) somehow.  I did restate the inequality in a few simplified possibilities, when x, y are both positive numbers and when x, y are both negative numbers. I know there are other cases though, such as when x is negative and y is positive or vice versa. And I'd also need to do varying cases when x+y >= 0, and x+y <= 0, where x,y could be all possible combinations of positive and negative.  It seems like there might be a solution through tedious case analysis along these lines but I believe there is probably a better way to come about the answer. In any case, the ones I did restate are:  Case 1:   $$ x + y \ge x - y $$ when x, y are both positive or zero. This simplifies somewhat.  $$ y \ge -y $$  $$ 2y \ge 0 $$  Case 2:   $$ -x - y \ge -x + y $$ when x, y are both negative or zero.  In the first case, when x and y are positive or equal to zero, it is obvious that it is correct.   Intuitively speaking, the second case and indeed any case should simplify down to the first case, since I know any negatives attached to the numbers will simply make them positive or stay zero since it is applying the rules of the absolute value function. I'm not sure how to state this in a proof though, and I'd like to be able to apply the technique that the book suggests.   I would appreciate any guidance on this problem, thanks in advance.


Should I put Android/iOS project folder and Dropbox/Google Drive folders in SD card?

I would like to ask if I should move my Android/iOS project folders to SD card. Assume that I work with them every working day.  Same question for Dropbox and Google Drive folders, but I'm much less likely to use anything there compare to the Android/iOS project folders above.  Thank you


In the preamble of my tex document I can set graphicspath. Is it also possible to set a path to sub sections and tables, so I can do \input{relative-path/filename.tex} from any tex file and move that text file to any location?  I am not trying to import a package.  I want to be able to go from this directory structure:  images/image1.png figures/figure1.tex tables/table1.tex section1/filename.tex main.tex   To this directory structure (i.e. change the location of filename.tex to a sub directory or move it to the root directory):  chapter1/images/image1.png chapter1/figures/figure1.tex chapter1/tables/table1.tex chapter1/section1/filename.tex chapter1/main.tex   It will break, if main.tex contains \input{chapter1/filename.tex}. Can I avoid manually having to change that to \input{chapter1/section1/filename.tex} upon changing the directory structure?


Problem with graphic when booting from liveCD

i have laptop Lenovo ideapad z50-75 AMD version and i want to install Ubuntu on my external HDD. I setup bios to legacy mode and boot from liveCD. After boot ubuntu from liveCD i should see a window, where i choose language and if i wanna try or install. But i only see black screen, only dark purple frame of this window and nothing else.  Computer spec:    processor: AMD FX-7500 radeon R7 graphic card: AMD R7 M260DX   RAM: 8GB   I download Ubuntu 14.04 64-bit version. Is any solution how to repair graphic to see choices?  This is, what i see, when i do UEFI boot from liveCD and start files browser. if i boot in legacy mode, same thing happend but with the window, where u can choose language and  try Ubuntu or Install.


does pi contain all integer combinations

When considering 3 first numbers in pi, we get 'fixed numbers' 314. However, three integers can have 999 =10^3-1 versions, of which only one 'belongs' to pi. Thus, for n first digits of pi we have 10^n-2 versions of integers which do not belong to pi ratio being 1/(10^n-2)-> 0.0, when n increases. Thus, for increasing number of n, the probability of finding n random numbers in n 'fixed' numbers of pi approaches zero?


I would like to know if its possible to 'step up' the voltage from two AA batteries (3V for Alkaline and 2.4V for NiMH) to a stable 3.3V ?  I need to find a good power source for a circuit that I'm building which controls a few LEDs with an attiny45 chip running at 3.3V.


I'm trying to calculate the gradient with respect to x of the following function $$g(x) = x^TP^TPx + q^Tx + r$$ with $x,q \in R^n, P \in R^{nxn}$ and P full rank  I've been using this answer as its kind of similar .  Please forgive me as I am not very experienced with vector calculus.  I create intermediate variables $P^TPx = u$ and $x^TP^TP = v$, both vectors.  Next I try to use the chain rule in a similar way as the answer linked above with $x^Tu$ and $vx$. $$\frac{dg}{dx} =  \begin{bmatrix} \frac{\partial g}{\partial x^T} & \frac{\partial g}{\partial x} \end{bmatrix} \begin{bmatrix} \frac{\partial x^T}{\partial x^T} \\ \frac{\partial x}{\partial x} \end{bmatrix} = \frac{\partial g}{\partial x^T} + \frac{\partial g}{\partial x} $$ Now $\frac{\partial g}{\partial x^T} = \frac{\partial}{\partial x^T}[x^Tu] = u$   and $\frac{\partial g}{\partial x} = \frac{\partial}{\partial x}[vx] = v$   and $\frac{\partial}{\partial x}[q^Tx] = q^T$  So I have $\frac{dg}{dx} = u + v + q^T = P^TPx + x^TP^TP + q^T$  Is this correct?


What is the intuitive explanation for the CDF of any random variable to follow uniform distribution?  While i'm clear with the mathematical proof, I'm looking for an intuitive explanation to this.


Combinations of a penny, nickel, dime, and quarter

You have one penny, one nickel, one dime, and one quarter. How many different amounts of money can you make using one or more of these coins? Please help me! I'm having trouble! I'm having trouble I know the obvious ones like $5,10,25,1,15,26,36,16,\ldots$ Help? And I need to know the coin combinations too. I found $15$ different ones! Anyone who can find more??


What is the distribution of the m.g.f. that corresponds to the limit.

Let $\lambda>0$ be a fixed number. Suppose $X_n\sim Bin(n,\frac{\lambda}{n})$, for $n\in\mathbb{N}\setminus\{0\}$.  Find the moment-generating function $M_{X_n}(t)$ for $X_n$. Compute for $t$ fixed, $\lim_{n\rightarrow\infty}M_{X_n}(t)$. What is the distribution of the m.g.f. that corresponds to the limit?  My Attempt  $\displaystyle{M(t)=\mathbb{E}[e^{tx}]=\sum_{x=0}^xe^{xt}\binom{n}{x}\left(\frac{\lambda}{n}\right)^x\left(1-\frac{\lambda}{n}\right)^{n-x}=\sum_{x=0}^x\binom{n}{x}\left(\frac{\lambda e^{t}}{n}\right)^x\left(1-\frac{\lambda}{n}\right)^{n-x}=\left(\frac{\lambda e^t}{n}+1-\frac{\lambda}{n}\right)^n}$  \begin{align} \lim_{n\rightarrow\infty}\left(\frac{\lambda e^t}{n}+1-\frac{\lambda}{n}\right)^n&=\lim_{n\rightarrow\infty}\left(1+\frac{\lambda e^t-\lambda}{n}\right)^n\\ &=\lim_{n\rightarrow\infty}e^{n\ln(1+\frac{\lambda e^t-\lambda}{n})}\\ &=\lim_{n\rightarrow\infty}(\lambda e^t-\lambda)+\frac{o(n)}{n}\quad\text{(where $\lim_{n\rightarrow\infty}\frac{o(n)}{n}=0$)}\\ &=\lambda e^t-\lambda \end{align}   The part that I am having trouble with is figuring out which distribution the limit of the m.g.f. corresponds to.


Number of bases of an n-dimensional vector space over q-element field.

If I have an n-dimensional vector space over a field with q elements, how can I find the number of bases of this vector space?


If a maximal subgroup is normal, it has prime index

I'm having trouble with an exercise in "Introduce to the theory of group" book. This is problem:  Let $M$ be a maximal subgroup of $G$. Prove that if $M$ is a normal subgroup of $G$, then $[G: M]$ is finite and equal to a prime.


Activating 'missing' standard GRASS utilities in QGIS Processing toolbox

I have been using QGIS and Grass for ages and while I've noticed this issue before, I've not been bothered by it until now.  It is (hopefully) a bit of a noob question but when I open GRASS in the QGIS Processing toolbox, I notice that a lot of standard utilities appear to be missing (e.g. r.in.bin and others  - There are only 161 commands listed for Grass 6.4.3 and this figure should be much higher).    I am not talking about add-on plugins but standard parts of the GRASS toolset (according to the Grass documentation).  Looking in the Grass bin folder, however, I can see the are there.  It is not that the bin folder is not recognized as I can see many of the other utilities there in Processing.  I have tried updating to the latest version of QGIS (2.18) with OsGeo4W and re-installing both Grass 6.4.3 and 7.2.  I have checked the paths in Processing-options and all looks fine (in as much as the paths point to the top-level directory in each case as they always have).  How can I make the missing ones appear in the Processing toolbox?


Ok scenario: 8 9 8 9 9 on table. Player 1 has 8/4 in hand. Player 2 has K/2 in hand. Who wins? I personally say split since table has higher full house. Am I right?


Can I cancel hotel reservation AFTER crossing immigration in Schengen area?

I already have tourist visa to Germany. I stated I will be staying in a hotel, but I am PLANNING to stay with a friend*. I figured I would cancel the hotel reservation AFTER I go through immigration, just in case the immigration officers call the hotel to confirm my reservation.   Is this a good idea or should I just stay in the hotel instead?  *I thought obtaining a "formal obligation" for Schengen visa application was too much of a hassle (when you want to stay in Germany to visit a friend/relative), so I declared that I'd be staying in a hotel instead.


How can I prove that $\int_{a}^{b} f(x)g(x) dx = g(a)\int_{a}^{c} f(x) dx +g(b)\int_{c}^{b} f(x) dx$?

Let $f$ be a continuous function on $[a, b]$. If $g$ is decreasing monotone and bounded in $[a, b]$ using the mean value theorem, prove that there exists $c \in [a, b]$ such that: $$\int_{a}^{b} f(x)g(x) dx   = g(a)\int_{a}^{c} f(x) dx +g(b)\int_{c}^{b} f(x) dx$$ I tried to do $h(x) = g(x)-g(a)$ but failed


Fatal error: Allowed memory size of 33554432 bytes exhausted PHPExcel

I am using PHPExcel library to read and write excel file excel2007 format. These are not big excel files, approximately 120rows and 20columns only.. When I run on my dedicated server its showing error as follows..  Fatal error: Allowed memory size of 33554432 bytes exhausted (tried to allocate 40 bytes) in /home/ramdas/public_html/partnumber/inc/PHPExcel/Style/Supervisor.php on line 126   And here is my code.. i am using memory cacheing techniques..      include("inc/PHPExcel.php");     $cacheMethod = PHPExcel_CachedObjectStorageFactory::cache_to_phpTemp;     $cacheSettings = array( 'memoryCacheSize' => '512MB');     PHPExcel_Settings::setCacheStorageMethod($cacheMethod,$cacheSettings);     $objPHPExcel = new PHPExcel();   I have checked the return value of PHPExcel_Settings.. its return true..  Please help me to solve this issue... I have tried all the answers available here... Nothing help me to solve..


Is there a hook available to modify / alter the title of content in this list ? It's a autocomplete widget. I just want to add the content type.


Create a light material which is seen as a focus in Cycles

How can I make a light material which is seen as a focus?


I have a problem with the subsurface modifier. I am new to blender.  The modifier does this:   I know the reason. It's because I have some geometry on the back:   So on the back I have a corner. This is the top view:    I know I have a problem with the corner from the top too but that is a different problem that I need to fix.


Prove that there is no arithmetic progression that consists only of primes.  A question that I've been set; I'm guessing it makes use of primes being written in the form 4k+1 and 4k+3? Not sure where to start.  Thanks.


What would the replicator do if Picard ordered "Hot. Earl Grey. Tea."?

Is a particular sequence required for detailed replicator requests?    To elaborate, is there a reason Captain Picard orders his tea, "Tea. Earl Grey. Hot." aka "Noun. Descriptor. Descriptor." and not "Descriptor. Descriptor. Noun." or "Descriptor. Noun. Descriptor." (in the event he forgot a descriptor)?  Would ordering it as "Hot. Earl Grey. Tea." or even the non-statement "Hot Earl Grey tea." produce a warm (hot), smoky (gray-ish) gas with the odor of tea?  I assume his ordering sequence is an acquired background affectation, but I'd like confirmation.  Note: I'm using "descriptor" instead of "adjective" to avoid minutia/debate about classification.


How to press F9 without pressing Fn+F9 in windows?

My F1-F12 keys have all sorts of multimedia buttons on them (volume, brightness, wifi, etc). But I am working in a 3D application which uses F1-F12 heavily, and I do not want to have to press fn+F9 for example as thats slows my productivity down considerably.   How can I get round this?   I went into BIOS hoping there would be an option to swap fn and multimedia keys, but I looked everywhere and there was one. Just a fn + control key swap which I don't need.  System is Lenovo ThinkPad with Windows 7 (ubuntu dual boot but I mostly use win7).  UPDATE - I have updated to the latest BIOS (from 2.26 to 2.29) from Lenovo website to no avail. Still no such option to change fn behaviour under BIOS.


What are the number of onto functions from a set $\Bbb A $ containing m elements to a set $\Bbb B$ containing n elements.  I found that if m = 4 and n = 2 the number of onto functions is 14.  But is there a way to generalise this using a formula? If yes, what is this formula and how is it derived?  reference  I referred to this question but my doubt was not cleared:   If not, Then what is the standard way of doing it?   If you explain this to me with an example please explain with the example of m = 5 and n = 3.


I made this template class:  //Elenco.h  #pragma once #include "Tipi.h" #include <vector>  template <typename T> class Elenco { public:     //constructor     Elenco() : Elenco::Elenco(std::vector<T> {})     { }      Elenco(const std::vector<T>& _list) : list{ _list }     {         sort();     }      //setter     T add(const T&);      //viewer     const std::vector<T>& view() const;  private:     std::vector<T> list;      void sort(); };     //Elenco.cpp  #include "Elenco.h" #include <algorithm> #include <iostream>  //setter template<typename T> T Elenco<T>::add(const T& item) {     list.push_back(item);      sort(); }   //viewer template<typename T> const std::vector<T>& Elenco<T>::view() const {     return list; }   //private template<typename T> void Elenco<T>::sort() {     for (unsigned short n = 0; n < list.size(); n++)         for (unsigned short m = 0; m < n; m++)         {             std::cout << list[m] << "-" << list[n] << ": " << bool(list[m] > list[n]) << std::endl;             if (list[m] < list[n]) std::swap(list[m], list[n]);         } }       //main.cpp      #include "Elenco.h"     #include <iostream>      int main()     {         using namespace std;          vector<Player> elenco{ {"carlo", 11}, {"mario", 3}, {"franco", 5}, {"paolo", 1}, {} };         Elenco<Player> a{ elenco }; //<---- same if I use an int or any other type          for (auto it : a.view()) cout << it << endl; //<---- operators<< and < have been overloaded in Player.h          return system("pause");     }   The problem is that when I try to create an object I get these errors:     unresolved external symbol "public: class std::vector > const & __thiscall Elenco::view(void)const " (?view@?$Elenco@VGiocatore@@@@QBEABV?$vector@VGiocatore@@V?$allocator@VGiocatore@@@std@@@std@@XZ) referenced in function _main        unresolved external symbol "private: void __thiscall Elenco::sort(void)" (?sort@?$Elenco@VGiocatore@@@@AAEXXZ) referenced in function "public: __thiscall Elenco::Elenco(class std::vector > const &)" (??0?$Elenco@VGiocatore@@@@QAE@ABV?$vector@VGiocatore@@V?$allocator@VGiocatore@@@std@@@std@@@Z)        2 unresolved externals   I found in another post that you can fix this by including Elenco.cpp in my main.cpp file, or by including it at bottom of Elenco.h excluding the file from the project.  Both solutions work, but they doesn't seem great because I lose the main purpose of an header: allowing to modify my definition without re-compiling my projects...  So I could I fix that? And (above all) why do I get there errors?


some one states that the earth would travel in it path for 8 min if the sun vanished.  The equations of gravity show the Moon would crash into the Earth and the Earth would head for Mars the instant the Sun is gone.  Can someone show how there is a delta Time and the relaxing of the bend in space-time fields is finite?


How do get column position for multiple column names

I have a scenario where I want to get column position number   ID|NAME|S1|BQ|S2|VN|D1 1|vimal|10.12|12.4|56.2|12.2|11.22 2|vilas|10.12|12.4|56.2|12.2|11.22 3|viky|10.12|12.4|56.2|12.2|11.22  column name : S1|S2|D1   Output should be below:   3 5 7   I tried below code but partially provide output   awk -F"|" 'NR==1{for(i=1;i<=NF;i++){print $i"=$"i}}' demo.txt | grep -E "S1|S2|D1"  S1=$3 S2=$5 D1=$7   Need output like below  3 5 7


Let $a_1$ and $b_1$ be any two positive numbers, and define $\{ a_n\}$ and $\{ b_n\}$ by   $$a_n = \frac{2a_{n-1}b_{n-1}}{a_{n-1}+b_{n-1}},$$  $$b_n = \sqrt{a_{n-1}b_{n-1} }.$$  Prove that the sequences $\{a_n\}$ and $\{b_n\}$ converge and have the same limit.   Source: Problem Solving Through Problems by Loren C. Larson.   Hint:      Use the squeeze principle.


Given $A \subset U$ and $B \subset U$. Prove or disprove $A - B \ = \emptyset \implies A \subset B$   I think this is the way to do it: $$ A = B \implies A \subset B \implies A' = B' \implies A-B = \emptyset  $$


Why is the square root of the square of a negative number /variable always positive?

For negative values of x, $(x^2)^{0.5}$ is $\pm x$.  For negative values of x, $(x^{0.5})^2$ is undefined.  Why do textbooks insist the following: for negative values of $x$, $\sqrt{x^2} = |x|$?  Surely the correct way to think about this is that for negative values of $x$, $\sqrt{x^2}$ is either undefined or equal to $\pm x$, depending on the order the operations are conducted in?  See here for an example:


Save image in any weight and immediately reduce it

I am building a site using drupal 7. I created a node form for users to write content and upload images (using the core image field).  Is it possible to let users to upload images of 5-10 MB (and more), and immediately reduce the weight of the image to only 1 MB, and only then save it on my Drupal site?  My goal is that user will be able to upload any image size they want, but still save space on my Drupal site.


Root "Nexus 5" Android 4.4 kitkat to install custom rom?

What is the best guide to root the "Nexus 5" 4.4 Kitkat version? There seem to be so many guides and I'm not sure which one is the easiest and quickest to follow.  Also when rooted, where can I get custom roms?   Also what if I wanted to flash it back to Stock 5.2 lollipop, where do I get that?


With a subfunction I mean that given a class A and instance a, I can call  a.control.fire();   Where control is some type of struct containing functions. However, an additionall requirement is that fire() can access variables of a. I have tried the following:  #pragma once  using namespace std;  class A { public:     double c;      struct Controller {         double fire () { return c * 2};     };      Controller control;      A(); };   Now I can indeed call a.control.fire() but it gives an error on trying to access c. How can I solve this?


Using active voice without personal pronouns

When writing scientific research proposals I have been advised to try and stick to active voice because passive tends to sound indirect and to imply doubt.  However, when writing in active voice, I find it difficult to not use personal pronouns.  Does anyone have any tips for maintaining active voice without using personal pronouns?


Basically I've been using windows 10 on my hard disk (this is a laptop) and booting in kali linux with a usb stick from time to time, but since I realized I liked Linux a lot I decided to try a dual boot with Ubuntu (I have a backup just in case) possibly without wiping my data. So I made a live USB, booted into it and selected the 'install' option that appears on the desktop. I went with the 'dual boot with windows 10' option. I'm writing from Ubuntu from my main hard disk right now, but the problem is that from what I understood when I boot the 'black menu' (I think it's the grub bootloader or something like that) I should see an option to boot from windows, but I only have three options: Ubuntu, Advanced Ubuntu Settings (or something like that) and finally 'setup system' (once again, something like that). No Windows 10 option! As soon as I noticed it I installed GPARTED (I made some experience with kali) and I saw that windows is still there (could have done it with nautilus but due to being used to the crappy explorer in windows which can't even see freaking partitions I didn't think about it), so now if I'll have to reinstall Windows I can pass my old files which are still there with no problem (even though I'd prefer to resolve this with some faster solution), but even then, how can I keep both without ubuntu doing this? Any help will be appreciated, thanks in advance.  Edit: Fixed it! As @oldfred suggested I ran sudo update-grub and everything worked from then on.


Data point that minimizes all four parameters

First of all, I must say I'm in no way a data scientist or anything; I just happened to come across a problem, and I am attempting to use statistics to find the best solution.  The problem is about splitting each of six sets of items in two, with each combination having four parameters, and finding the split that minimizes four parameters. Specifically, I'm trying to optimize the book schedule, so that my desk mate and I can bring the required schoolbooks to school with the least effort - that is, with   minimal total weight for me $W_m$, minimal total weight for my desk mate $W_d$, minimal swapped books for me $S_m$, and minimal swapped books for my desk mate $S_d$.      How should I seek the best splitting, i.e. the combination that minimizes all four parameters?     My first thought was simple weighted Euclidean distance: simply assign a score $S = \sqrt{\alpha(W_m^2+W_d^2)+\beta(S_m^2+S_d^2)}$ to each combination, and then evaluate the $n$ lowest scores for some weights $(\alpha,\:\beta)$. However, my concern is that such a score would possibly give too much weight to suboptimal solutions, no matter the choice of weights. This seems especially true considering that [I read somewhere that] the Euclidean distance tends to favour closer points much more than farther ones.  Perhaps an improvement could be computing the average weight $W=\frac{W_m+W_d}2$ and the average swap number $S=\frac{S_m+S_d}2$, and then computing the weighted Euclidean distance between these, $S=\sqrt{\alpha W^2+\beta S^2}$.  Any thoughts?


Hi thanks for passing over this topic. Over the week one server got unresponsive. After a lot of reading logs i got that someone got in to the server at the exact time it started getting unresponsive. The server hangs after one exact hour. It seems like the network interface get stucks as i loose control over HTTP servers. SSH connection. What would be the correct way to troubleshoot what that user did. Checked CRON jobs but there is nothing there. How can i see what the server is doing at the exact hour of uptime that is getting it out of service. Thanks a lot! Server os CentOS 7.8 running CWP panel. On logs i can see a los of NFS shares complaining it cant connect. It seems something is bloking my network interface or something related to network. EDIT: server is Amazon EC2 Instance, no console acccess.


Is there a way to set the sort order of each element returned in a linq select within the query

I have a LINQ select query which fetches a list of books:  var books = from b in _context.Books             where b.Available && b.BookType == bookType             orderby b.Title             select new BookViewModel             {                 Title = b.Title,                 Description = b.Description,                 Id = b.Id,                 SortOrder = ?             };   BookViewModel has a SortOrder property which I want to set in the query. The first book in the list would have SortOrder = 1, the second book would have 2, etc. It's essentially just the index of the book in the returned list.  Is there a way to set this within the query? I understand I could do another linq query once I have the list, but this seems inefficient. I don't properly understand the innards of a linq select, but given it's sorted by the orderby I don't see why there wouldn't exist some way to set the index of the element.


If $\Gamma^k_{ij}(p)=0$, then $\nabla_{E_i}E_j (p)=0?$

I'm having the same problem as it was questioned   I can't get throught the step where I need to show that $\nabla_{E_i}E_j (p)=0$. It only leads to $$ \nabla_{E_i}E_j(p)=\sum_{lk}^n a_{il}(0)\dfrac{\partial b_jk}{\partial x_l}(0)\partial x_k(p) $$ which I can't show that equals zero.  On the linked question, there is also the indication that $\nabla_{E_i}E_j (E_k)=\Gamma^k_{ij}$. This could lead that $\nabla_{E_i}E_j (E_k)(p)=\Gamma^k_{ij}(p)=0$, but $\nabla_{E_i}E_j (E_k)(p)$ is not equal to $\nabla_{E_i}E_j (p)$ which is the one I need.  Can someone help me?


Conservative central force and stable orbits

I saw a question a few days ago which referred to Bertrand's theorem.  So, I now know that stable, closed orbits only occur when the potential function is $\frac{-k}{r}$ or $\tfrac{1}{2}kr^2$.      If we relax the conditions to stable but not necessarily closed orbits then what are the possibilities? If we restrict consideration to power law forces $kr^n$, for what $n$ are stable orbits possible?   My memory was that for $n \geq -2$ there are stable orbits but for $n \leq -3$ there are not.  I forget the cases between $-2$ and $-3$.  I believe that a circular orbit is possible for all $n$ but consider a slight perturbation to that orbit.  For the well known $n = -2$ case, we will get a ellipse with low eccentricity.  If my memory is right then for $n = -1$, the orbit will be stable just not closed.  For $n = -3$, the orbit will not be stable and spiral in or out after the perturbation.    Am I right on the power law forces?  I have tried searching here and elsewhere but failed to find my answer.    Clarification: note that I am not interested only in circular orbits.  The primary question is whether they are stable if perturbed but further information on the nature of stable orbits for central forces would be very welcome.


Find the eigenvalues of a projection operator

A projection operator $P$ is defined as $P^2$=$P$. Use this definition to find the eigenvalues of this operator.   In this question is it necessary to define what the projection operator is? And won't the eigenvalue just be zero?


Infinite product $\prod\limits_{n=1}^{\infty} (1-a_{n}) = 0$ implies divergence of $\sum_{n=1}^{\infty} a_{n}$ or not?

If $\displaystyle\prod_{n=1}^{\infty} (1-a_{n}) = 0$ then is it always true that  $\displaystyle\sum_{n=1}^{\infty} a_{n}$ diverges? ($0 \leq a_{n} < 1) $


Prove that  (a)  A number is divisible by 3 if and only if the sum of its digits is divisible by 3.  (c)  The number 100x+ 10y+zis divisible by 11 if 11|x−y+z.(e.g.  11|528)  I am really bad at proving something please help


How can I show that there is no integer such that $a^2 − 3a − 19$ is divisible by $289$.