Although this is tagged as , I think it is more of an oversight.    The election nominations aren't questions. Besides, how do they "show research effort" and be "useful and clear"? Something more like "Vote for this candidate" and "Vote against this candidate" would be more clear.
On the moderator , the tooltip will display the text used for voting on a question; this is incorrect.   Steps to reproduce:   Cast a vote for or against any candidate Undo that vote   At this point, the tooltip content is changed, at least for that candidate.  See screenshots:           As you can see, the message doesn't quite fit here; these are certainly not questions.
Let $A$ and $B$ be two constant matrices and let $x$ and $ y$ be two random vectors, what is the general formula for $Var(Ax+By)$? I know the formula for when $x$ and $y$ are scalar random variables and $A$ and $B$ are constants, but what about the matrix case? This tiny little script deletes all small features in all layers. This works fine but the size of .shp files are not reduced. Please tell me why...  canvas = iface.mapCanvas() expr = QgsExpression("$length&lt;100") for l in canvas.layers():     l.startEditing()     it = l.getFeatures(QgsFeatureRequest(expr))     for ft in it:         l.deleteFeature(ft.id())     l.commitChanges() Is a passport needed when flying within Mexico as a U.S permanent resident? How to open new tab in browser in selenium 3.0? I have tried multiple actions but it is not working.  It always close the first tab and then it open link in the same page.  // Driver is launched package WebBrowserCommands;  import org.openqa.selenium.By; import org.openqa.selenium.Keys; import org.openqa.selenium.WebDriver; import org.openqa.selenium.chrome.ChromeDriver; import org.openqa.selenium.interactions.Actions;  public class OpenBrowser   {     public static void main(String[] args) throws Exception {         System.setProperty("webdriver.chrome.driver","/Users/ss108/Desktop/Util/SELENIUM SUPPORT/chromedriver");          WebDriver driver = new ChromeDriver();          driver.manage().window().maximize();         // Driver is launched          //We have two ways         boolean Indriectway = true;         //Boolean to understand both method          if(!Indriectway){             //Using String to take value.             String URL = "https://www.google.com";             driver.get(URL);              String PageSourceFirst = driver.getPageSource();             //We have took title in PageSourceFirst             System.out.println(PageSourceFirst);              //Get Title Command             String TitleFrist = driver.getTitle();             //We have took title in TitleFirst             System.out.println("Tile of WebSite is " + TitleFrist);              //Get Current URL             String CurrentURLFirst = driver.getCurrentUrl();             System.out.println("Current URL is " + CurrentURLFirst);              Actions act=new Actions(driver);             act.contextClick(driver.findElement(By.linkText("Gmail"))).perform();             Thread.sleep(10000);             act.contextClick(driver.findElement(By.linkText("Gmail"))).sendKeys(Keys.ARROW_DOWN).sendKeys(Keys.RETURN).build().perform();                    // Try to open page using right click and action arrow down **but it is not working**              driver.close();          }else {             //Using directly             driver.get("https://www.facebook.com");             String PageSourceSecond = driver.getPageSource();             System.out.println(PageSourceSecond);              //Get Title Command             System.out.println("Tile of WebSite is " + driver.getTitle());             //Get Current URL             System.out.println("Current URL is " + driver.getCurrentUrl());             driver.quit();          }     } }   Second method  1- Same result getting   System.setProperty("webdriver.chrome.driver","/Users/ss108/Desktop/Util/SELENIUM SUPPORT/chromedriver");     WebDriver driver = new ChromeDriver();     driver.get("https://www.facebook.com")     Robot robot = new Robot();     robot.keyPress(KeyEvent.VK_META);     robot.keyPress(KeyEvent.VK_T);     robot.keyRelease(KeyEvent.VK_T);     robot.keyRelease(KeyEvent.VK_META);       driver.get("https://www.google.com")   Third method  String selectLinkOpeninNewTab = Keys.chord(Keys.CONTROL,Keys.RETURN);  driver.findElement(By.linkText("urlLink")).sendKeys(selectLinkOpeninNewTab);   however none of them work for what I am trying. Proving $\sqrt{ab} = \sqrt a\sqrt b$ I am currently in high school and we are studying radicals. I had asked my math teacher why $\sqrt{ab}=\sqrt{a}\sqrt{b}$ (for all a,b>0) and he tries to prove it by arguing that $a^{1/2}*b^{1/2}=(ab)^{1/2}$ (an exponent law). However, I find this proof problematic since $x^{1/2}$ is simply defined as $\sqrt{x}$, so the reasoning is circular.   My view is that $\sqrt{ab}=\sqrt{a}\sqrt{b}$ because once we square both sides we get $ab=ab$. Since we're obviously referring to the positive root, and the function $f(x) = \sqrt{x}$ is injective, it necessarily follows that the original expressions $\sqrt{ab}$ and $\sqrt{a}\sqrt{b}$ are equivalent because for injective functions it is not possible to map distinct elements in the domain to the same element in the range ($ab$). Hence they are equivalent expressions.   My question therefore is, is my proof valid and/or rigorous (I find it convincing but maybe it's wrong; I just want to be clear) and secondly was my teacher's proof correct? mysqli_fetch_assoc() expects parameter / Call to a member function bind_param() errors. How to get the actual mysql error and fix it? LibreOffice Calc - Disable rounding There are a  on this topic, but no simple and definitive answers.    Can someone please tell me how to permanently disable cell rounding on the .csv file which is created by script?  Basically, '377635637222436751' is being converted to '377635637222437000' automatically and that isn't really acceptable for my needs.  I've tried this: Tools->Options->Calc->Calculate "Precision as shown"   and this: Format > Cells > Numbers > Category > (scroll down for) Text. (but considering my script creates the .csv -- this option isn't very good since it must be done after the file is created)  And neither is working.  The number stays rounded -- even after formatting the column after the file is created.  Does anyone have any suggestions? Using the Fitch system, how do I prove $((p \implies q) \implies p)\implies p$? Using the Fitch system, how do I prove $((p \implies q) \implies p)\implies p$? I started with the hypotheses $(p \implies q) \implies p$ and $\sim p$. However, from these hypotheses I did not get the desired contradiction to solve the question.  Thanks sb45 How to transfer a DVD to my hard drive Can you negate the Frightened condition by not looking at the source of your fear? As the title says, if you cause a creature to be Frightened of you, as in the Frightened condition, but they can somehow manage to not see you, do they stop rolling with disadvantage to attacks/ability checks?  Below are scenarios to illustrate my question.  Scenarios:   If a creature is frightened of you, and they turn their back against you to hit someone else, would they no longer have disadvantage to attack rolls/ability checks? If a creature is frightened of you and they have Blindsight, can they close their eyes to stop seeing you, and hence stop rolling with disadvantage? If a creature has 60 ft of movement and is frightened of you, and there is a corner they can reach in 15 ft that will block you from sight, can they run to that corner to stop being frightened, then run back to attack without disadvantage? Assume they would not provoke OA to do this, although the OA is immaterial to the question. Make Launchpad Appear on screen with mouse What is the percentage increase to any value when initial value is 0? This is a very simple maths problem, which doesn’t seems simple to me when I just put some extra thoughts on it. So need to borrow some extra brains for this.   Question: If cost of coffee in my office was Dollar 0 till yesterday and today it is Dollar 2.5 then what is the percentage increase in the cost of coffee?  Initially it seemed like 2.5% increase, simply by distributing number from 0 to 100, but this is not the case.   Some suggested it is infinitely more than the previous value, because we are calculating percentage by dividing by zero. But what about this if the cost of coffee was $0.25? Isn’t still infinitely more! Something is wrong here.   PS: Yes, coffee were free in our office but not anymore, and we are still recovering from this shocker. 😥 Sometimes, others just inform us about things without us asking them, other times they do not do that even if we ask them. I want a verb for when others do not give us information — whether because they do not like to or they just don't give it, but we cannot directly ask them to — but we actively extract the information from them sometimes without them being aware of it.   So the word I am looking for shouldn't be only for cases where we coerce or force others to give us information, and it shouldn't be only for cases where others do not like to give us information.  Example:     I needed that information. But I couldn't ask her for it, or most   probably she would not give to me even if I asked her. So, I ....   the information I wanted.   It could be a phrasal verb and so not just a single word, but I couldn't devise a  blank suitable for all possibilities!   Two verbs I've already had but I think are not suitable:  to give someone the third degree   To prize something from/out of somebody Let $\left| {{a_{ii}}} \right| > \sum\limits_{i \ne j} {\left| {{a_{ij}}} \right|} $.Why does $A$ is nonsingular? . PXE Boot Server Installation Steps in Ubuntu Server VM When cutting/copying some cells to paste them into another sheet/page, sometimes Excel freezes/locks up and fades out. At the top toolbar it says in brackets "not responding".  Eventually, I must click 'X' to close the program. It offers to wait for the program to respond, but never does – it just does nothing until I finally close it, where it offers to recover files etc.   Is there an issue with memory here? What can I do to stop it locking up? How to apply standardization/normalization to train- and testset if prediction is the goal? Mass Lead Conversion - Programmatically or Using Data Loader Can quarks be considered real and elementary? About $\lim \left(1+\frac {x}{n}\right)^n$ I was wondering if it is possible to get a link to a rigorous proof that  $$\displaystyle \lim_{n\to\infty} \left(1+\frac {x}{n}\right)^n=\exp x$$