09 2013 档案

Pick two points at random from the interior of a unit square, what is the expected distance between them?
摘要:My solution is as folllowing.This integration is hard to solve. I googled it, and found the result is 1/3*ln(1+sqrt(2)) + 1/15*(2+sqrt(2)) = 0.52140543..please see the link below.http://mathworld.wolfram.com/SquareLinePicking.htmlhttp://www.stat.columbia.edu/~liam/teaching/4109-fall10/chapter4.pdf 阅读全文

posted @ 2013-09-30 21:30 Torstan 阅读(276) 评论(0) 推荐(0) 编辑

suffering-oriented programming, by Nathan
摘要:http://nathanmarz.com/blog/suffering-oriented-programming.html 阅读全文

posted @ 2013-09-25 10:23 Torstan 阅读(130) 评论(0) 推荐(0) 编辑

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