Why does this Java long calculation return NaN?
Double value returns 0
How to add a class to a given element? Java method dispatch with null argument In Batman #1 in the New 52, when we visit the Batcave for the first time, we see a dinosaur:     What... is up with that? It is a completely awesome cave decoration - but what else is it? Is it a non sequitur or is it a call back to an earlier storyline? I imagine it's the latter – a life-size T-rex model is an expensive piece of decor, even for Bruce Wayne.  Bonus points: are there any other relics from past storylines visible in this Batcave?  Update: here's a shot of the other panel that gives us a view of the "showroom" (including the huge dice). Inspired by a , here's a list of the 'etymology' for the  hats. For pictures and a list of criteria, see  instead.  The list is a community wiki; feel free to edit it if you have more information about a hat. If you like to do some research, most hats have been featured in earlier editions, so you might be able to find more information in old Meta Stack Exchange questions. When connected to the Internet, the system checks if it's in a walled garden, which is simply trying to connect to Google. If it fails, in Android 5, there'll be an exclamation mark on the WiFi icon or signal icon.   In some situations, this is annoying. Say, in China, Google is blocked, the exclamation mark will always be there, which is meaningless.  How can I disable this check, and make the system assume, connected WiFi/mobile data is connected Internet? Could not open input file: composer.phar Ubuntu 14.04, Intel Chromebook, no sound Is “ ’s ” ever correct for pluralization? How to replace spaces with newlines/enter in a text-file? I have simple text file named "example".  Reading with terminal command: cat example  Output:  abc cdef ghi jk lmnopq rst uv wxyz   I want to convert (transform) into following form: (expected output from cat example)  abc cdef ghi jk lmnopq rst uv wxyz   How can I do this via the command-line?   (This is only an example file, I want to convert word's position in vertical-column) Ubuntu App Development. Unable to install Ubuntu SDK and buggy Ubuntu emulator Is it required for panel data to use dummy variables? I am doing research considering seven countries and I have panel data. My question is: do I need to include dummy variables every time I use panel data in regression, or is enough to do it as a fixed effect in Stata, without dummy variables? Word for something sad and funny at the same time I have a folder on my desktop which is named ".." (which itself contains subfolders with an empty name). The folder can't be deleted the usual ways, even not when using the CLI. Does anyone know how I can remove this folder on Windows Vista 64-bit?  Renaming does not work, either (obviously).  This is what "dir /x" echoes:  09.10.2009  15:04    &lt;DIR&gt;                       . 09.10.2009  15:04    &lt;DIR&gt;                       .. 08.03.2007  11:18    &lt;DIR&gt;                       cgi-bin                0 Datei(en),              0 Bytes                3 Verzeichnis(se), 45.866.037.248 Bytes frei I needed to edit a .config file (which I know for a fact is not creating these problems, just to clear that up) and it wouldn't let me save it, so I took ownership of /etc and all contents with the command chown -hR username /etc and that let me edit the .config file but now whenever I try to install any packages or use any sudo commands, it doesn't work  (I've checked for errors in the sudo file in sudoers.d and there was nothing wrong with that).   So how do I return it to the previous owner? Defend against flag spam in chat We have incidents where we get 10+ flags from the same room in rapid succession. This happens on multiple occasions and we have reason to believe it's a single user doing this.  I don't think it's of value to allow a single user to flag more then n messages in a small time period.  If we could have some anti-flag spam measures put in place, then that would be great. Edge won't connect to internet, Skype for business won't screen-share, Windows Store won't update apps after Windows 10 version 1809 installed I ran into a problem after upgrading Windows 10 October 2018 to version 1809. After the Windows update I noticed the following problems with Microsoft applications:   Microsoft Edge could no longer connect to the internet even though Chrome, Firefox and IE 11 still could. Skype for Business (formerly Lync) no longer allowed me to share my screen or view another person's shared screen. The Windows Store could not connect to the internet to update apps. The Microsoft Feedback portal could no longer connect to the internet.   How can I resolve these network issues that seemed to cooincide with an upgrade to Win10 ver 1809? How can I render an edge only mesh as solid lines? I have a schematic of a raspberry pi that is completely flat, no solid faces, just connected vertices.  Is it possible to render these lines somehow, so that it looks like a 2D drawing?  Maybe with freestyle? Why do people sometimes use the past perfect form of a verb when the past would suffice? (e.g. "you had mentioned") I noticed that my American friends tend to use the past perfect form when they use the verb mention in its past form, almost despite of the context of the sentence. I hear them say  "you had mentioned" a lot more often even in situations where the use of simple past would have been perfectly fine. Have you noticed it too and is it one of those unwritten rules, or is there a more formal explanation to it?  It seems like there was more verbs like that, but I am having a hard time remembering it now. If I do, I will edit the post and likely change the title to accommodate other verbs. Imagine you're trapped inside a free falling elevator. Would you decrease your impact impulse by jumping during the fall? When? Reading shapefile using C#? I am new to ArcGIS and trying a few things..   I'm trying to read shapefile (which is supplied as an input) using C# and I want to generate a PDF file which contains underlying metadata information (similar to the Identify tool) ?