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Apr
1
answered recursively solve equation and saving the values
Mar
29
comment How to make a 3D globe?
To avoid the strange spirals I used: Texture[Rasterize[pic, ImageSize -> 1500]] instead of Show in Mark's code.
Mar
29
comment How to make a 3D globe?
It is very nice! +1.
Mar
28
answered How to make a 3D globe?
Mar
28
comment Trying to prove that $x\sin(\frac{\pi}{x})\ge\pi \cos(\frac{\pi}{x})$ for $x\ge 1$
I know it is not rigorous but I think Taylor series are good as an aproximation of results. Ideally you should use the infinite terms in series.
Mar
28
comment Sequentially numbering a nested list
Your replace is safer than mine :P. +1!
Mar
28
answered Sequentially numbering a nested list
Mar
28
answered Trying to prove that $x\sin(\frac{\pi}{x})\ge\pi \cos(\frac{\pi}{x})$ for $x\ge 1$
Mar
26
comment SIGSEGV error with 3D Plots
I use CentOS 5 and Fedora 15 & 16. With CentOS I had the same problem but only with graphics with many points. In Fedora 15 it always crash, but in Fedora 16 it doesn't. I tried with M7, M8, and M8.0.4. Updating from 8.0.1 to 8.0.4 doesn't help. Problem is not M but the system.
Mar
25
answered Replacing composite variables by a single variable
Mar
25
comment Splitting words into specific fragments
Maybe it works like the Overlaps option: StringPosition["archbishop", altelem, Overlaps -> All].
Mar
24
awarded  Quorum
Mar
23
comment How to generally match, unify and merge patterns?
@celtschk Yes, you are right, what I meant was a PatternUnion that simplifies too, simple union and intersection might be done using || (or Alternatives) or && as you showed. But like Union (which merges the list and delete duplicates) that function should simplify too. Interesting problem.
Mar
23
awarded  Civic Duty
Mar
23
answered Setting parts of a list
Mar
22
comment MapThread on a nested Map
I think the problem is not nested map, but nested pure functions with &. Try using Function as @ruebenko answer.
Mar
22
comment MapThread on a nested Map
Using Function is the best option to see if every thing is applied when you want.
Mar
18
comment Mathematica: finding min/max in list
+1. I did think about ordering, but used to think it was going to be terribly slow.
Mar
18
comment ParametricPlot3D creates a blank graphic in this case
Very clever use a transformation of variables. But anyway I think the question was why the plot fails. But this is one of the best workarounds.
Mar
16
comment Organizing similar datasets using DownValues instead of Contexts
This reminds me "dict" in python. Good way to get all the keys quickly.