So much I don't know.  Would love to be able to ask, learn, and discuss as I do in your other forums.
I have an idea or subject that should have a Q&amp;A, and want to propose a new site. How can I do this?  Related:
This is actually a two part question:   Which methods are there to calculate average slope by unit (say km²) for a given area? Are there any special requirements on the data - like additional information besides height measurements? Which open source GIS implement methods usable to calculate average slope on a grid (e.g. TIF file)? Is there a word or phrase for two nouns or adjectives joined by a conjunction (usually "and") in a fixed sequence?        alive and well           fast and furious   hat and gloves   pen and pencil   law and order   wit and wisdom   salt and pepper   bacon and eggs   horse and carriage   Adam and Eve   ladies and gentlemen   loud and clear   heads or tails   yes or no   dead or alive Git SSH error: "Connect to host: Bad file number" How to remove an element from a list by index What is the difference between # and . when declaring a set of styles for an element and what are the semantics that come into play when deciding which one to use? What is a good word for “best example”? What is a good word for “best example”? I would like to describe a film as the greatest example of its features. Where were the Avengers during Iron Man 3? Unsized array declaration in a struct I am looking for the definition of when I am allowed to do forward declaration of a class in another class's header file:  Am I allowed to do it for a base class, for a class held as a member, for a class passed to member function by reference, etc. ? Is it a good practice to ask before exiting an application (with nothing to save)? Every now and then, I come across applications that, when clicking on the main window's "X", ask me whether I'm sure that I want to quit the application.    I'm not talking about asking me to save unsaved documents, but about applications that aren't document related at all.  This always bothers me, since I feel totally interrupted in my workflow. I was already thinking two steps ahead of what I want to do next, and this message box abruptly pulls 100% of my attention.  My question:  Are there any valid use cases where a non-document-centric application should ask me whether I'm sure that I want to exit the application? In Problems in Mathematical Analysis, Volume 2 by Kaczor and Nowak, Problem 2.3.34 is stated as follow.   Find this limit using L`Hôpital rule  $$\lim\limits_{x\to\infty}x((1+\frac{1}{x})^x-e).$$  I have tried by using L'Hospital rule five times but have no result.  I can compute this limit by using Taylor expansion. I got stuck on this inequality for a day. If $p$ is positive integer, then the problem becomes too easy, but I can't find how we deal with the general case when p can be any positive number. Can someone give me a hint? I really appreciate     Prove that $|x^p - y^p| \le p|x-y|(x^{p-1} + y^{p-1})$ provided that $1 \le p \lt \infty$ and $x, y \ge 0$ Are there functions or packages in Mathematica to sort subsets in lex order, colex, revlex, etc.? Possibly offensive usernames I flagged  as having a  ():    I said "possibly offensive" because it's possible it's a genuine surname I wasn't aware of, but googleing didn't show any evidence and  pretty much matched my definition of it which seems offensive.   Is this really a genuine name? If not how is it possibly not offensive and thus a bad flag?   (I flagged in good faith so even if it is a genuine name declining seems harsh) When is it correct to use "yourself" and "myself" (versus "you" and "me")? I think this is a very recent design change, because I've not seen it before:    Where before a small box with the bounty value dislocated the title a couple of characters to the right, now the additional text saying how long until it expires dislocates the title by about a quarter of the width of the column.  I find that this makes it much harder to read the title, and is counterproductive to the goal of attracting attention. How to prevent Google from finding my admin index page? From the :  [1,4,9].map(Math.sqrt)   will yield:  [1,2,3]   Why then does this:  ['1','2','3'].map(parseInt)   yield this:  [1, NaN, NaN]   I have tested in Firefox 3.0.1 and Chrome 0.3 and just as a disclaimer, I know this is not cross-browser functionality (no IE).  I found out that the following will accomplish the desired effect. However, it still doesn’t explain the errant behavior of parseInt.  ['1','2','3'].map(function(i){return +i;}) // returns [1,2,3] I heard the following comment of Mr. Marco Rubio about Mr. Donald Trump on CBS’s “Face the Nation” in a clip in February 29th AP Radio News:  “There is never gonna be a time where the Republican Party rallies around and says you have to get out or anyone has to get out for purposes of rallying around Donald Trump. Donald Trump is not Republican Conservative. Donald Trump is trying to pull off the biggest scam in American political history.”  I thought I misheard “There is never gonna be a time where –“ for “There is never gonna be a time when –“ at first, because I was in understanding that time should be trailed by “when” as a relative noun or adverb. An English Japanese dictionary at hand (Readers English Japanese Dictionary published by Kenkyusha) provides “where” singly as a relative to refer the ‘place.’ However, my lookup of the following two sources endorsed that I heard it right:  Here is what is never going to happen in this race. There's never going to be a time where the Republican Party rallies around and says you have to get out or anyone has to get out for purposes of rallying around Donald..  “Here is what is never going to happen,” Rubio continued. “There's never going to be a time where the Republican Party rallies around and says you have to get out or anyone has to ...   Is it common, at least not uncommon to use “where” after “time” as a relative? Is there a way to check the size of the video memory? Specifically, is there one that works accurately for both integrated GPU's as well as PCI/AGP graphics cards?  Many integrated GPU's have dynamically allocated memory, so the solution would hopefully return either the maximum available video memory or the currently allocated amount. For stand-alone NVidia or ATI cards it would obviously return the total amount of physical GPU RAM.  lspci -v does output memory figures, but I do not believe it is the video memory. I suspect the figure reported is some system memory allocation or block or channel size, but I don't know for sure. You can see in these  that lspci was wrong in 5 of the 6 tests:  ** ASUS EN210 PCIe - 1024 Mb ***   01:00.0 VGA compatible controller: nVidia Corporation GT218 [GeForce 210] (rev a2)         Subsystem: ASUSTeK Computer Inc. Device 8354         Memory at e3000000 (32-bit, non-prefetchable) [size=16M]         Memory at d0000000 (64-bit, prefetchable) [size=256M]         Memory at e0000000 (64-bit, prefetchable) [size=32M]  *** Galaxy 8400GS PCIe - 512 Mb ***   01:00.0 VGA compatible controller: nVidia Corporation G98 [GeForce 8400 GS] (rev a1)     Subsystem: nVidia Corporation Device 05cc     Region 0: Memory at e4000000 (32-bit, non-prefetchable) [size=16M]     Region 1: Memory at d0000000 (64-bit, prefetchable) [size=256M]     Region 3: Memory at e2000000 (64-bit, non-prefetchable) [size=32M]  *** VirtualBox VM - 10 Mb (headless server) ***   00:02.0 VGA compatible controller: InnoTek Systemberatung GmbH VirtualBox Graphics Adapter         Memory at e0000000 (32-bit, prefetchable) [size=16M]  *** VirtualBox VM - 128 Mb ***   00:02.0 VGA compatible controller: InnoTek Systemberatung GmbH VirtualBox Graphics Adapter (prog-if 00 [VGA Controller])         Memory at e0000000 (32-bit, prefetchable) [size=128M]  *** S3 Savage 4 AGP - unknown Mb (old lspci log), but I don't think they made these cards with 128Mb memory! ***   00:01.0 VGA compatible controller: S3 Inc. Savage 4 (rev 06) (prog-if 00 [VGA controller])     Subsystem: IBM Unknown device 01c5     Region 0: Memory at feb80000 (32-bit, non-prefetchable) [size=512K]     Region 1: Memory at f0000000 (32-bit, prefetchable) [size=128M]  *** NVIDIA Quadro FX 1800 integrated - 1024 Mb ***   01:00.0 VGA compatible controller: nVidia Corporation GT215 [Quadro FX 1800M] (rev a2) (prog-if 00 [VGA controller])     Subsystem: Dell Device 040c     Memory at e2000000 (32-bit, non-prefetchable) [size=16M]     Memory at d0000000 (64-bit, prefetchable) [size=256M]     Memory at e0000000 (64-bit, prefetchable) [size=32M]