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visits member for 2 years, 8 months
seen Mar 28 at 9:24

Mar
28
comment Fastest way to create a NxNxNxN dimensional matrix
Why do you need to store the table in memory? If it's just a simple multiplication of two complex numbers to get one particular element, you could just compute it every time it's needed. Might even be faster than looking up an element in a structure with 500 million elements.
Feb
15
awarded  Yearling
Nov
20
awarded  Nice Answer
Nov
18
revised Even Fibonacci numbers
ooops, should filter out the uneven Fibonaccis before computing them...
Nov
18
answered Even Fibonacci numbers
Nov
11
awarded  Citizen Patrol
Sep
20
comment How to plot periodic function's graphic?
Your syntax is off. Functions in Mathematica are defined by patterns, so it needs to be f[t_] on the left hand side. Also, I don't know why you expect Mathematica to understand f[t+10]=f[t] properly. It works if you define it like this: f[t_] := If[-5 <= t <= 5, t, If[t > 0, f[t - 10], f[t + 10]]];
Sep
9
comment Print indexed (by subscript) variable name systematically
You should use Do[..., {g, 3}] instead of For[g = 1, g < 4, g++, ...];. It's idiomatic, easier to read and maintain, and possibly faster. Or Map, if possible, or some other construct.
Aug
21
comment How to automatically put the part of a variable name after the first letter in symbolized subscripts?
@Ouistiti See my edit
Aug
21
revised How to automatically put the part of a variable name after the first letter in symbolized subscripts?
added 493 characters in body
Aug
21
answered How to automatically put the part of a variable name after the first letter in symbolized subscripts?
Aug
20
revised How to do computations simultaneously in multiple notebooks?
deleted 99 characters in body
Aug
20
comment How to do computations simultaneously in multiple notebooks?
Absolutely right, I'll fix it
Aug
20
answered How to do computations simultaneously in multiple notebooks?
Aug
19
answered Mathematica not plotting whole logarithmic function
Aug
19
awarded  Commentator
Aug
19
comment Mathematica not plotting whole logarithmic function
Actually, the problem is still there when you put in larger numbers... but it's a little better. At that point I'd probably draw in a straight line manually, extending the curve. Check out the Graphics and Line commands.
Aug
19
comment Mathematica not plotting whole logarithmic function
It's a problem of how Plot[] works. There is only one pixel per x-value, and the curve at x=-1 is so steep that it doesn't take up more than one pixel in width. Use this instead: ParametricPlot[{x, Log[x + 1]}, {x, -1, 3}, PlotRange -> {{-2, 3}, {-10, 2}}]
Aug
19
answered Creating overlapped block matrices
Aug
16
awarded  Yearling