barrycarter
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 1d comment How to get probabilities for multinomial & hypergeometric distribution ranges more quickly? I assume you're looking for exact methods, and not inexact faster methods such as Monte Carlo simulation or a normal approximation? I also assume you're familiar with jstor.org/stable/2347220 which provides FORTRAN code to find the distribution of the maximum value (but not the minimum value) exactly (I haven't tested the code and it may actually be slower than your method). Apr 18 comment Simulation with two random walkers on a lattice with periodic boundaries You can do two checks for equality, one after each step left/right, or you can keep the directions as variables and make sure that the pre and post position of the two walkers is the same (ie, #1 left of #2 in both cases or #1 right of #2 in both cases). If you don't count that as a collision, #1 could pass #2 and continue going to infinity, no? Apr 18 comment Simulation with two random walkers on a lattice with periodic boundaries Just skimming, but: if #1 at +5 and #2 at +4, can you end up having #1 go left and #2 go right, so that #1 at +4 and #2 at +5, but #1 and #2 not equal, so your program doesn't realize the two have collided? Apr 16 accepted Convert polynomial to Chebyshev Apr 14 awarded Revival Apr 5 comment Importing .AVI to mathematica and frame extraction community.wolfram.com/groups/-/m/t/385261?p_p_auth=5mj3jDt1 and mathematica.stackexchange.com/questions/161/… may or may not be helpful. Mar 30 awarded Nice Answer Mar 30 comment Plots of United States states with non-standard labels code.google.com/apis/kml/documentation/us_states.kml is where I found the US one, there should be plenty for other countries, but I don't know where they are specifically. Mar 30 answered Plots of United States states with non-standard labels Mar 30 revised Wolfram Development Platform does not define variables properly Mathematica != WDP Mar 30 comment Numerical optimal control Isn't this a calculus of variations problem? Mar 30 suggested approved edit on Wolfram Development Platform does not define variables properly Mar 30 answered Wolfram Development Platform does not define variables properly Mar 30 comment How to extract all necessarily code for a function? Have you tried DumpSave["filename.mx"] without supplying a second argument? Mar 29 answered Macdonald-Koornwinder polynomials? Mar 29 comment Tom's family how to cross the bridge I'm working on a graph-like solution at github.com/barrycarter/bcapps/blob/master/STACK/… if anyone wants to help. Mar 29 comment Tom's family how to cross the bridge Could you draw the graph? Mar 29 comment Tom's family how to cross the bridge Could you draw the graph? Mar 29 comment Tom's family how to cross the bridge @Yode Oh, I thought you had mislinked. The link is in a foreign language and just appears to be a random website. I didn't realize it was the problem in a different language. Mar 28 comment Tom's family how to cross the bridge Your link goes to ugly hideousness of a page. (OP)