Robby McKilliam
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 Jul 1 awarded Civic Duty Jun 7 comment Is this problem solvable in polynomial time? You might be able to get a reasonable solution using loopy belief propagation' approaches (its sometimes also called generalized belief propagation', see en.wikipedia.org/wiki/Belief_propagation). As far as I know, these are approaches to solving dynamic programing type problems when the graphs have cycles. Jun 4 comment Is pi a good random number generator? mmm I wonder if there is a relationship between ease' of spigot algorithm and goodness' of equidistribution? Jun 4 comment Is it possible to use linear programming to solve this problem? Perhaps people on stack overflow would be able to help you out on this one too? Jun 4 comment Is pi a good random number generator? I doubt it. I personally am much happier believing a published proof (that I can't find an error in) than the output of some sort of RNG built by hand in the real world. Jun 3 comment Is pi a good random number generator? but +1 anyway because I think this formula is really cool. Jun 3 answered Is pi a good random number generator? Jun 3 comment Is pi a good random number generator? see Steve's comment. Jun 1 revised Are there interesting problems involving arbitrarily long time series of small matrices? deleted 16 characters in body May 29 comment Random Walks in $Z^2$/$Z^2$-intrinsic characterization of Euclidean distance Part II Nice ! May 26 answered Are there interesting problems involving arbitrarily long time series of small matrices? May 25 revised Random Walks in $Z^2$/$Z^2$-intrinsic characterization of Euclidean distance Part II deleted 131 characters in body May 25 revised Random Walks in $Z^2$/$Z^2$-intrinsic characterization of Euclidean distance Part II added 18 characters in body May 25 answered Random Walks in $Z^2$/$Z^2$-intrinsic characterization of Euclidean distance Part II May 24 awarded Critic May 21 comment Funky congruences Perhaps I don't understand your question properly, but this looks like en.wikipedia.org/wiki/Chinese_remainder_theorem May 17 awarded Enthusiast May 17 comment Beginning a sentence with a mathematical symbol @Sune: Fantastic! Now I can't even trust my own sense of `nice'. May 16 revised Beginning a sentence with a mathematical symbol deleted 262 characters in body; added 1 characters in body May 16 comment Beginning a sentence with a mathematical symbol @Vectornaut: Great, now I am totally confused :) I am going to undelete my answer. Gowers had convinced me that it was wrong, but now I really am not sure. If people don't like the answer they should mark it down so that it can at least inform people of what not to do!