Prove that (2011/2012)^(2011/2012) is irrational:
If $x$ is a positive rational but not an integer, is $x^x$ irrational?
How to make a modification take affect without restarting nginx? Apache has a graceful option which can scan for modification in http.conf without restarting Apache. What about nginx? Can't get armature to move mesh! I am trying to get an armature to move one limb on a deer I have made. Here is my design process!   I made the body and limbs as separate meshes. I wasn't sure how to create limbs out of the body of the mesh and make them look good. I tried joining  the meshes, creating the armature and setting automatic weights and then moving the armature in pose mode. The mesh would not move with the armature I thought maybe it was because many vertices between the mesh and the limb were crossing so I thought maybe that was why the armature was not moving the limbs I used the cut tool to remove the intersecting mesh on the limb and the body so that there were no intersecting vertices.  I then joined this set of meshes and created a new armature, set the weights to automatic and tried to move the mesh in pose mode and it still won't work.    What should I do? I don't know what else to try. I have been following any other online instructions exactly.  File Link: Can you catch a native exception in C# code? In C# code can you catch a native exception thrown from deep in some unmanaged library? If so do you need to do anything differently to catch it or does a standard try...catch get it? I'm preparing for my exam, but I have difficulties in perceiving why there is a $\frac{1}{2}$ in the distance formula $d=\frac{1}{2}at^2$? Sort and display directory list alphabetically using opendir() in php Logistic regression in R resulted in perfect separation (Hauck-Donner phenomenon). Now what? I'm trying to predict a binary outcome using 50 continuous explanatory variables (the range of most of the variables is $-\infty$ to $\infty$). My data set has almost 24,000 rows. When I run glm in R, I get:  Warning messages:   1: glm.fit: algorithm did not converge   2: glm.fit: fitted probabilities numerically 0 or 1 occurred    I've read the other responses that suggest perfect separation might be occurring, but I'm confident that isn't the case in my data (though quasi-complete separation could exist; how can I test to see if that's the case?). If I remove some variables, the "did not converge" error might go away. But that's not always what happens.  I tried using the same variables in a bayesglm function and got the same errors.  What steps would you take to figure out exactly what's going on here? How do you figure out which variables are causing the problems? At the end of the movie we are shown      a bowl with berries in it and Seneca Crane looked like he was locked in a room with them and was supposed to eat them. Did he eat them?   Why did that happen? What are the limits of the Room of Requirement? Remember last selected items per page in global search How can we define convexity in one dimension? Definition of a convex set: A set $S\subset\mathbb R^n$ is said to be convex if for each $x_1, x_2\in S$ the line segment $\lambda x_1 + (1-\lambda)x_2$ for $\lambda\in (0,1)$ belongs to $S$. This says that all points on the line connecting two points in the set are in the set. My question is: how can we define convexity in one dimension? Looking for a quick and dirty way to automate . I presume this could be done with an automation to press the mouse button from two separate pixel coordinates, with delay, so long as the browser window doesn't move -- unless there's a better way.  I tried building a Watch Me Do workflow, in Automator, but can't seem to get it to work.  I get the error "application Chrome is not running when it is expected to." It also never lists mouse clicks for some reason.  I do have accessibility set up, in system preferences > security &amp; privacy > privacy > accessibility.  Automator, Chrome and System Events are all checked within there (among other stuff of course).  I tried the markashworth workaround as detailed  -- which also doesn't seem to work. Using his method, I get this error:    UPDATE: I just downloaded "cliclick" and figured out how do both clicks as a terminal command, with the proper delays.  BUT -- I don't know code and need a way for this terminal command to repeat "x" amount of times.  Anyone know how I could do that in Script Editor?  The command line is:  cliclick c:132,286 w:100 c:132,286 w:5000 c:1100,238   I would need a few seconds of delay before the loop repeats, which I presume I could do with a final "w:" in that line.  Thanks for the help!! Are "whores" and "horse" homophones? I’m Spanish but sometimes see TV shows in English.  My question is whether the words horse and whores sound exactly the same, because in many English language TV shows it seems like they are, which really surprises me.   Are they homophones?  I cannot hear any voicing at the end of the word whores to distinguish the two words. Spanning volume disk usage I have two SSD disks of 256GB and I want to create a single spanning volume of 512GB. I am using Windows 10. What I want to know is how will Windows handle this under the hood.  Will the first disk fill up before the second one starts being used, or will Windows use both disks. For example, if I have 256GB of data on the spanning volume, will it be divided to 128GB on first and 128GB on second physical disk or will it all be on the first disk with the second disk empty? Would this behavior be any different if I were using two HDDs? Let $S = \{1,2,\dots,n\}$. Then $i \in S$ is said to be a fixed point of a permutation $p$ or $S$ if $p(i) = i$. Let $P_n(k) $ be the number of permutations of $S$ which have $k$ fixed point. Prove that $\sum_{k=0}^nk\cdot P_{n}(k) = n!$. What are the guidelines for using version-specific tags? I believe that some of my questions were asked before but I didn't find any satisfying guidance. I just found only . I hope senior members will help me to understand the situation and use tags correctly.  I have several questions which are related to following explanation:   What is current community's attitude towards version specific tags on Stack Exchange?  How to correctly use version specific tags?  When is it good to create version specific tag? Should any version specific tags be at least marked as synonyms to version unspecific tags? Should I use version specific tags if I re-tagging questions?  Should I re-tag questions if I think that incorrect version specific tag is used?   For example, I mainly visiting questions related to two main topics: WCF and Entity framework. Tagging questions in these topics follow very different rules. WCF uses single main tag  sometimes combined with  currently proposed as synonym to WCF, whereas Entity framework currently have:      - version 2 and 3 never existed  - I started this tag myself but now I think it was a mistake   and two ridiculous tags (both for CTP5 of EF 4.1 – their meaningful lifetime was about 3 months):         I've already several times retagged questions introducing tag for EF 4.1 RC. Separate problem is in Code-first approach related strictly to  where 5 other tags are used to describe the same:           I asked for merging these tags in .  As you can see that EF topic currently contains too many tags to describe the same. There are other related tags to EF but they are mainly used as supporting tags for specific features.  First I thought this is a common situation because ASP.NET MVC uses also new tag for each version even questions usually asks for general problems related to any version but then I was informed by @Richard in  that EF is probably tag polluted.  I regularly retag questions in EF topic. Currently I'm using:     as general topic's tag because I was already informed by @Slauma  that people usually have only this tag between their favorites and I should not remove it. It was a good point.   for questions related directly to EFv4 features  for questions related directly to EF 4.1 features  for questions related to fluent and annotations mapping from EF 4.1   But still I think that  and  are somehow redundant but I'm not sure if my opinion is shared by other participants in these tags. WCF also has 3 versions and almost twice as more questions than EF and it still uses only single main tag  without any problem. I think the used version should be information included in a question.  Are there any general rules? What about version related tags to C#, .NET and ASP.NET MVC? I first thought that it is common and accepted approach to create version specific tags just because users around ASP.NET MVC (strong tag) do the same.  Sometimes I think I received privileges too early and I don't use them correctly. I need some guidance. Changing an element's ID with jQuery Difference between "not equal" operators  and != in PHP Word for person who looks for flattery Creating polygons from points in Mapinfo What is the best way to open a file for exclusive access in Python? What is the most elegant way to solve this:   open a file for reading, but only if it is not already opened for writing open a file for writing, but only if it is not already opened for reading or writing   The built-in functions work like this  &gt;&gt;&gt; path = r"c:\scr.txt" &gt;&gt;&gt; file1 = open(path, "w") &gt;&gt;&gt; print file1 &lt;open file 'c:\scr.txt', mode 'w' at 0x019F88D8&gt; &gt;&gt;&gt; file2 = open(path, "w") &gt;&gt;&gt; print file2 &lt;open file 'c:\scr.txt', mode 'w' at 0x02332188&gt; &gt;&gt;&gt; file1.write("111") &gt;&gt;&gt; file2.write("222") &gt;&gt;&gt; file1.close()   scr.txt now contains '111'.  &gt;&gt;&gt; file2.close()   scr.txt was overwritten and now contains '222' (on Windows, Python 2.4).  The solution should work inside the same process (like in the example above) as well as when another process has opened the file. It is preferred, if a crashing program will not keep the lock open.