MADNESS

There is a cute result from number theory that states that for sufficiently large n the product of the primes less than n is less than or equal to e**n and that as n grows, this becomes a tight

编程之美 Beauty of Programming[Essentials]3.1 String Rotation ==> Concatenation3.2 Loop Recursive3.3 Levenshtein distance (Edit distance), computing: DP ***3.4 Singly linked list3.5 How t

http://en.wikipedia.org/wiki/Erdos-Renyi_modelOne of their most surprising results is the existence of abrupt changes in the characteristicsof random graphs as random edges are added. They sho

http://acm.tju.edu.cn/toj/showp3914.htmlhttp://blog.youkuaiyun.com/wmn_wmn/article/details/7840539http://blog.ac521.org/?p=512http://en.wikipedia.org/wiki/Lucas'_theoremhttp://blog.youkuaiyun.com/wu

Excerpts from the Book: Python Programming in Contexthttp://en.wikipedia.org/wiki/Sobel_operatorIn order to find an edge, it is necessary to evaluate each pixel in relation to those that a

harmonic functionsfactorial functionsboundinghttp://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-00-introduction-to-computer-science-and-programming-fall-2008/readings

http://en.wikipedia.org/wiki/Birthday_paradox

http://en.wikipedia.org/wiki/Simpson's_paradoxhttp://zh.wikipedia.org/wiki/辛普森悖论http://baike.baidu.com/view/965928.htm===========Simpson's paradoxFrom Wikipedia, the free

http://community.topcoder.com/tc?module=Static&d1=tutorials&d2=mmProblems2Bayes TheoremBy timmacIn the case of LumberjackExam, where the probabilities and errors refer to yes/no va

Electric FenceDon PieleIn this problem, `lattice points' in the plane are points with integer coordinates.In order to contain his cows, Farmer John constructs a triangular electric fence by stri

Feed Ratios1998 ACM Finals, Dan AdkinsFarmer John feeds his cows only the finest mixture of cow food, which has three components: Barley, Oats, and Wheat. While he knows the precise mixture of the

哥德巴赫给欧拉的心中“任何