@TedErsek Does windows 7 respond to the PrintScreen button (assuming it's present)? In other words, can you press PrintScreen and go into Paint and paste the result?
@J.M. My OS is Windows 7. I know if the mouse focus is on the Mathematica window, I can press (Alt, Prt Scr) and my Mathematica window is on my clip board. Then I can do things like past it into Power-Point. So how do I past it into SE?
Then use the 'picture' button (the one to the right of the curly braces, or above the 'Styling/Headers' in @rcollyer 's screenshot. It will automatically upload the image and paste in some formatting code.
By selecting the ? mark on the far right it brings up the help, which the image above is the image help. Per Brett, once it is saved as a PNG or JPG, you need to upload it to the server. You do this by selecting the 6th button from the left, in the larger view it looks like a picture. This brings up a dialog to upload your image to the server. The scripts then input the link to the image for you.
@OleksandrR and @JM per our discussion on thermite the other day, here's a video about using SiO2 as the oxygen source. Yes, he used sand.
Graphics are tightly integrated into the Mathematica interface. The Front End is programmable, and Mathematica has functions to interface with the web, so the question naturally comes up:
Could we make it possible to upload images to StackExchange directly from Mathematica, using a palette butt...
@BrettChampion very much so. Some of them are so cryptic that it is impossible to determine what exactly is going wrong. At the same time, though, the fountain of Messages one can generate can easily overwhelm any one of marginal sanity. I'll have to think on the exact contents I'd want to cover, if I do write it.
Just because it is potentially a very broad topic.
Messages are tricky to write. They should be reasonably short, including whatever arguments get fed in (e.g. Expand[(a + b)^50]) and people jump on any small inaccuracies ("The message says foo has to be a positive integer, but it can [much less often] be None or a list of positive integers!")
I was thinking more along the lines of the structure of a message, where to look for further info, and those pesky General messages. Maybe a bit more content, alongside the advice to breath.
@Jin If you need to create a shape that requires precision or some sort of automation (for example making various stellated polyhedra), just ask here in chat and lots of people will be happy to make that shape in Mathematica for you
I want to produce a Mathematica Computable Document in which N appears as a variable in my formulae. But N is a reserved word in the Mathematica language. Is there a way round this other than using a different symbol? It seems a severe limitation if you cannot use Mathematica to generate papers i...
@rcollyer I think this is a masterstroke: Eigenvalues[RandomReal[{0, 1}, {2, 2}], Method -> "none"] and then click on the rightarrow for further information: it takes you to the page for Eigenvalues, where there is no explanation of "Method"... (Arnoldi is mentioned in some outdated tutorial that I don't know how to reach with hyperlinks, and in a few (6, to be precise) other pages in the docs. But we are nowhere told what the methods and options are!
really inspired piece of documentation-writing there :)
Inspired by F'x, here's a 2D analogue of spikey. Done with a bunch of rules because I like them, and they make it clear what is going on.
Start with a pentagon:
p = Polygon[Table[N[{Cos[t], Sin[t]}], {t, \[Pi]/10, 2 \[Pi], (2 \[Pi])/5}]];
Make a rule to split any polygon into triangles (ce...
the one in that answer, I believe that's the most upvoted one by the community.
This is just a tweak on Szabolcs' ad, with a different slogan to make the case for why someone should join (we're fun! Just look at some of the most upvoted questions!)
using "BeachColors"
Also using "BeachColors" but reversing the ordering of the colours and removing the extremes:
colour5...
I keep noticing that new participants on the site often pick the first answer to their question without waiting for others to appear. In the interest of eliciting more and perhaps better answers, could the site enforce a waiting period to accept answers, say 24 hours?
This is just a tweak on Szabolcs' ad, with a different slogan to make the case for why someone should join (we're fun! Just look at some of the most upvoted questions!)
using "BeachColors"
Also using "BeachColors" but reversing the ordering of the colours and removing the extremes:
colour5...
I keep noticing that new participants on the site often pick the first answer to their question without waiting for others to appear. In the interest of eliciting more and perhaps better answers, could the site enforce a waiting period to accept answers, say 24 hours?
