Mike Flynn
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 Aug6 asked Linear programming: what does the “test ratio” measure? Jul19 comment A method to test for uniform distribution over a convex polytope hit and run. Pick an initial point, choose a random direction, the next point is a random point between initial point and wall in that direction. Jul19 comment A method to test for uniform distribution over a convex polytope I have no way of knowing $|P|$, in fact, this method is how I would calculate $|P|$, provided the sampling is uniform. Jul19 asked A method to test for uniform distribution over a convex polytope Jun27 answered Random Point on Infinite Line Paradox Jun27 accepted What is the typical method for sampling uniformly in a convex polytope Jun24 comment What is the typical method for sampling uniformly in a convex polytope Not in practice actually, if you make the jump length long enough. And are you saying that there is no known way to do it quickly for 1000 dimensions? Because I was considering using CUDA to do it... Jun24 asked What is the typical method for sampling uniformly in a convex polytope Jun18 comment Changing a basis and satisfying inequalities Ah, I now realize you must be very careful with each step... Jun18 asked Changing a basis and satisfying inequalities Jun17 accepted Is there a quick way to compute the matrix whose column space is the basis of the null space of another matrix? Jun14 revised Is there a quick way to compute the matrix whose column space is the basis of the null space of another matrix? edited title Jun14 asked Is there a quick way to compute the matrix whose column space is the basis of the null space of another matrix? Jun14 revised Problem generating random vectors with a randomized linear programming with equality constraints (weird clustering) added 63 characters in body Jun14 revised Problem generating random vectors with a randomized linear programming with equality constraints (weird clustering) added 20 characters in body Jun14 asked Problem generating random vectors with a randomized linear programming with equality constraints (weird clustering) Mar4 asked Two different ways to take the derivative on composite functions? Feb20 awarded Nice Question Dec11 comment What is a covector and what is it used for? yes, so $dx([1,2])$ would be the function $dx$ acting on the vector $[1,2] \in R^2$. Dec7 accepted How would you define a geodesic in $\operatorname{SO}(2n)$ and $\operatorname{SO}(2n+1)$?