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Dec
22
comment Sum over multiple indices
@Eleven-Eleven I don't understand what you mean by "I have replaced with what I needed and It seems that my sum is always 0". Exactly what did you replace??
Dec
22
comment Sum over multiple indices
This goes faster than my answer... any ideas why?
Dec
22
comment Sum over multiple indices
@Eleven-Eleven I fixed a typo in my answer: 1/n! to 1/k!.
Dec
22
revised Sum over multiple indices
Fixed an important typo : n! --> k!
Dec
21
comment Sum over multiple indices
@belisarius is there not a $1/k!$ missing?
Dec
21
comment Sum over multiple indices
@Eleven-Eleven I finished my answer. Please check if the result is correct.
Dec
21
revised Sum over multiple indices
continuing since previous answer was unaccepted.
Dec
21
answered Sum over multiple indices
Dec
19
comment How to define a two-variable sequence?
Why not Sum[2^(n+m-2j),{j,0,m-1}] ?
Dec
18
comment Why is C-compiled (but not WVM-compiled) code so slow in Manipulate?
This solution appears to work in 9.0.1 MacOSX and in 10.0.1 on Linux.
Dec
18
comment Why is C-compiled (but not WVM-compiled) code so slow in Manipulate?
@Szabolcs Setting the option Evaluated->False does make it more responsive. I'm trying to find more info on this option, but the documentation doesn't seem to exist. Do you know where I can find more information?
Dec
17
accepted Disable templates for user defined functions with usages
Dec
17
asked Why is C-compiled (but not WVM-compiled) code so slow in Manipulate?
Dec
15
comment Better replacement rules to perform this change of variables?
@thecommexokid I have modified the rules so that f[τ] correctly gets replaced to f[t], and changed the condition so that it looks only for {f, g, h}.
Dec
15
revised Better replacement rules to perform this change of variables?
Added a rule to convert f[τ] to f[t], and modified condition to look for specific functions f, g or h.
Dec
15
answered Better replacement rules to perform this change of variables?
Dec
15
accepted How to set InputAlias for all future notebooks that are opened in current session?
Dec
15
comment How to set InputAlias for all future notebooks that are opened in current session?
oops.. you're right: I meant to say that kguler's answer CurrentValue[$FrontEndSession, {InputAliases, "xx"}] = "X" is what I really needed (it applies to future notebooks too).
Dec
15
awarded  Custodian
Dec
15
revised Placing a ContourPlot under a Plot3D
Corrected spelling issue in title.