meta user
network profile
| bio | website | |
|---|---|---|
| location | ||
| age | ||
| visits | member for | 1 year |
| seen | 15 hours ago | |
| stats | profile views | 18 |
|
Oct 12 |
comment |
Printing Block Matrices Awesome, thanks. I put my edit in before I saw your example, and I see we came up with similar examples. The matrix I actually want to print is too unwieldly to copy here. |
|
Aug 23 |
comment |
Determine whether some expression contains a given symbol -1? Sure the answer is obvious once you know it, but I spent a very long time looking for an answer, and even longer trying to code my own answer. It's not like FreeQ is a terrible descriptive function name, and it's not listed in the 'Patterns' Guide, or the 'Testing Expressions' guide, or a bunch of other guides that might seem relevant to a newish user. |
|
Aug 19 |
comment |
Implementation of builtin function Fold That's great, thanks! |
|
Aug 19 |
comment |
Implementation of builtin function Fold @NasserM.Abbasi: Sure, but I asked the question because in this case a piece of the internal implementation does matter; if it were done in one way, I would run out of RAM, and if it were done in another, I wouldn't. |
|
Aug 19 |
comment |
Implementation of builtin function Fold Thanks for the implementation example R.M, but I was more looking for a test than an example. |
|
Jun 22 |
comment |
Outline around sphere @jVincent, that looks really good, thanks! |
|
Jun 22 |
comment |
Outline around sphere @J.M., Yeah, I may end up settling for this. There are just a lot of spheres in a 3D array (diamond lattice, actually), and I wouldn't mind something a bit more striking. |
|
Jun 18 |
comment |
The difference between 0. and 0 @Jens, @Pillsy, thanks. I arbitrarily choose this as the correct answer. I have chosen to add the line F[A___, a_?(Equal[#, 0] &), B___] to be safe: I do not want to cut off at less than 10^-10. |
|
May 3 |
comment |
What does the slash-colon symbol do? Thanks @nikko. What purpose do the x and y serve in this example? It seems to work without them. |
|
May 3 |
comment |
What does the slash-colon symbol do? @LeonidShifrin, With the help of this post I was able to parse your comment and I now understand; thanks. |
|
May 3 |
comment |
What does the slash-colon symbol do? @J.M.,@R.M,@kguler: Thanks for the tips, I didn't know about the F1 thing. Having read those documentation pages, I still don't understand the difference between my two lines of code. |
