I have been reviewing close voted questions for a while now. And I am not feeling encouraged to close questions since the numbers are just growing. I feel really responsible for allowing SO to have so many badly formatted questions to be around. May I request that we review our close vote policy to make the following changes   Should need about 2-3 votes utmost to decide if a question is closed If someone with a reputation / minimum gold badges closes a question, it should not need more than one more person to vote to close.   Overall, that would help bring down that 84.1k questions down.  More over, the number of clicks it takes to close a question is too much, 4 now (worst case). I suggest making this a 2 click process. At least until we can get some control on that huge 84.1k questions.  Edit : OR lets just start a campaign to close and bring that huge number down. In short it annoys me to see such a huge number of questions under review :).  Edit 30th Jan 2014 : The number of questions have increased dramatically, there by reducing the quality of our system. I urge the moderators to make closing of questions easier. Today, frankly, the correct reasons are not chosen since its easier to say "Unclear what you are asking", in one click. Its really painful to close. The number of votes needed is REALLY high. I suggest that we systematically make changes.   Blanket close all questions that have 4 votes No reopening of questions, a bad question has under gone 4 mins of review, is bad enough Prioritize 3 votes for all reviewers (line them up earlier) Once we have lesser than 5% questions with 4 votes, reduce the votes needed to 3 votes At this time prioritize 2 vote questions for reviewers.   My point is, it used to be hard to get into SO. Now its easy, and easy to get away, we have 112k questions for review. And I have stopped reviewing, its just too painful.  Edit 1st Feb 2014 : Close votes increase 1k every day 112.6k now. Wake up, SO is the only community that is high quality, lets keep it that day. WAKE UP!!
Today, the size of the close-votes queue is 55k questions and growing. Is that a problem?   Which action could be taken to clean it up? It seems to be growing faster than Stack&nbsp;Overflow members are capable to handle it.
Why the rows returns by "explain" is not equal to count()? Evaluate the following limit of finite sum Evaluate the limit $$\lim_{n\to \infty}\frac{1}{n}\sum_{k=0}^{[n/2]}\cos \left(\frac{k\pi}{n}\right)$$  I tried through considering two cases : (i) When $n$ is even (ii) when $n$ is odd.  When $n$ is even then the limiting value is $\frac{1}{\pi}$. But when $n$ is odd then ??  Case 1 : $n$ is even..  Then , take $n=2p$ where $p$ is positive integer. Then $$\lim_{n\to \infty}\frac{1}{n}\sum_{k=0}^{[n/2]}\cos \left(\frac{k\pi}{n}\right)$$  $$=\lim_{p\to \infty}\frac{1}{2p}\sum_{k=0}^{p}\cos\left(\frac{k\pi}{2p}\right)$$  $$=\frac{1}{2}\int_0^1\cos(\pi x/2)\,dx$$  $$=\frac{1}{\pi}.$$  Case 2 : When $n$ is odd.  Take, $n=2p+1$ , where $p$ is a positive integer. Then ,   $$\lim_{n\to \infty}\frac{1}{n}\sum_{k=0}^{[n/2]}\cos \left(\frac{k\pi}{n}\right)$$  $$=\lim_{p\to \infty}\frac{1}{2p+1}\sum_{k=0}^p\cos\left(\frac{k\pi}{2p+1}\right)$$  From here how I proceed ? "Not being good at swimming, he didn't like it." Could we omit the word "being" here? Not being good at swimming, he didn't like it.   Could we omit the word "being" here?     Not good at swimming, he didn't like it.   Which one is grammatically correct? Would this look natural:     StackExchange is a helluva site! I found out about this site at Facebook.    Or should we use the preposition on:     StackExchange is a helluva site! I found out about this site on Facebook.    Or are both okay?   (Inspired by a ) Unresponsive KeyListener for JFrame How to uninstall chrome OS and install Ubuntu 16.04 fully (not Crouton) on a Chromebook I want to uninstall Chrome OS and install Ubuntu instead. How would I do this? This is on Stack Overflow. On Meta I'm able to see what the tags are on the right side of the screen. In fact, I think yesterday or some point earlier today I saw tags on the right side of the screen (I can't screenshot or remember correctly).  It's right above the asked and active heading.  I know this is minor but what happened to it? It might be useful for browsing instead of having to look at the bottom of the question post.    Found an image on Google and it shows the tags on the right side of the screen: $$ \lim \limits_{(x,y)\to (0,0)} \frac {x^2 + y^2}{\sqrt{x^2 +y^2 + 1} - 1} $$  According to my textbook the limit equals $2$.  What I have tried:  Using the squeeze theorem:  $$ \lim \limits_{(x,y)\to (0,0)} \frac {x^2 + y^2}{\sqrt{x^2 +y^2 + 1}} \le \lim\limits_{(x,y)\to (0,0)} \frac {x^2 + y^2}{\sqrt{x^2 +y^2 + 1} - 1} \le \lim\limits_{(x,y)\to (0,0)} \frac {x^2 + y^2}{\sqrt{x^2 +y^2 + 1} - 2} $$ $$ 0 \le \lim\limits_{(x,y)\to (0,0)} \frac {x^2 + y^2}{\sqrt{x^2 +y^2 + 1} - 1} \le 0 $$  I have also tried to use the squeeze theorem with two other equations and obtained different values:  $$ \lim\limits_{(x,y)\to (0,0)} \frac {x^2 + y^2 - 1}{\sqrt{x^2 +y^2 + 1}} \le \lim\limits_{(x,y)\to (0,0)} \frac {x^2 + y^2}{\sqrt{x^2 +y^2 + 1} - 1} \le \lim\limits_{(x,y)\to (0,0)} \frac {x^2 + y^2 + 1}{\sqrt{x^2 +y^2 + 1} - 2} $$ $$ -1 \le \lim\limits_{(x,y)\to (0,0)} \frac {x^2 + y^2}{\sqrt{x^2 +y^2 + 1} - 1} \le -1 $$ What are "first class" objects? When are objects or something else said to be "first class" in a given programming language, and why? In what do they differ from languages where they are not?  EDIT. When one says "everything is an object" (like in Python), does he indeed mean that "everything is first-class"? Does visiting Canada from USA under ESTA reset the visa waiver? btrfs with multi devices fails automount in fstab I'm trying to automount btrfs  on 12.04-desktop-amd64. During bootsplash, fstab failed to mount btrfs and asked skip or manually prepare.  On the rootshell, btrfs device scan and mount -a could automount properly. It seems "btrfs device scan" was missing from bootstrap.  Where should I add the line to prepare bootstrap? How should I determine how many lands of each different color to put in my deck? How do I increase the render distance? I have created a simple model here   When rendering it the end of it is cut off   How can I get the camera to render a longer distance? Implement ```-style (fenced) Markdown code blocks Currently, Stack Exchange’s Markdown parser only allows four-space indents to represent code blocks:      // some code     // another line of code    and other Markdown implementations allow for an alternative syntax, that doesn’t require indenting each code line:  ``` // some code // another line of code ```   This is much more convenient to type out. It would be super useful if Stack Exchange could support this syntax.    By extension, this syntax also allow you to specify the source language right after the opening ```:  ```js // some code // another line of code ```   …which would then enable syntax highlighting for that specific language. Although it’s interesting metadata, I don’t think this feature is needed on Stack Overflow, as the syntax highlighting library works pretty well for various languages.  So, even if you would allow this syntax but ignore the ```language, this would greatly improve my productivity on Stack Exchange.  What do you think?  The moderators are currently collecting feedback regarding this feature, so please post a comment with your thoughts. Good idea? Bad idea? Don’t really care? What do you think are the benefits/drawbacks? Experiences? Let them know! Thanks! The limit of truncated sums of harmonic series, $\lim\limits_{k\to\infty}\sum_{n=k+1}^{2k}{\frac{1}{n}}$ What is the sum of the 'second half' of the harmonic series?  $$\lim_{k\to\infty}\sum\limits_{n=k+1}^{2k}{\frac{1}{n}} =~ ?$$  More precisely, what is the limit of the above sequence of partial sums? How do I capture the moon and its surrounding context? I wanted to photograph the full moon against a beautiful deep blue sky. I ended up with blown-out highlights of the moon:    So I switched to spot metering and captured the moon, losing the blue sky in the process:    I want a single photo that shows both the moon and the surrounding context (in this case, the blue sky). Doing an exposure fusion in Photomatix Essentials did not help:    Nor did HDR fusion (again in Photomatix):    Notice that the detail in the moon was lost in both cases, and the sky was also messed up in both cases: exposure fusion lost the beautiful blue color, while HDR created more texture than was actually present in the sky. I toggled Photomatix's option to remove ghosts, but that didn't help, either.  How do I photograph the moon together with its surrounding context (in this case, the blue sky, but in other cases, a tree, buildings, etc) without blowing highlights or shadows? I'm using a Sony NEX-5R, with the longest focal length lens I have, and with manual focus when needed.  Thinking I should fuse the photos manually, I tried opening the images as layers in Acorn, with the darker photo on top and with opacity set to 50%, and tried all 15 - 20 blending modes (normal, dodge, lighter, darker, multiply and so on), but none of them seemed to work. I'm afraid I don't know enough to use layers effectively. What blending mode and opacity and order of layers should I use for this task?  I don't have Photoshop, but do have Lightroom 5, Acorn and Nik Collection.  (In case you are about to recommend software, please note my requirements: I use a Mac, I would be willing to pay $20-30, and I don't want to use command-line software.) How to test hypothesis of no group differences? Referencing bib files with spaces in the filename Recovering from a move of /home when it's encrypted (ecryptfs) I had a 20GB / partition at work that dual-booted with Windows and it quickly ran out of space. I usually do 20GB / and 160GB (or whatever the rest of the hard drive is) as /home, so I intended on recovering the space Windows was taking up and turning that into /home.  That went fine and I was able to mount the partition and rsync all my files over.  However, I forgot that the partition was encrypted, so now all my files are sitting in /home/.ecrypt and /home/$USER is empty.  How can I recover my files from /home/.ecrypt and move them to /home/$USER?  I followed this tutorial: Plot a data/Table from Mathematica using `pgfplots`