王峰炬

摘要： The Four Numbers Game is a mathematical game, as taught by Dr. Paul Sally, Prof. of Mathematics at the University of Chicago. To play this game, draw... 阅读全文

摘要： The main goal of today's lecture is to prove the following theorem. Theorem 1.1 A number is a sum of two squares if and only if all prime factor... 阅读全文

摘要： 各位亲爱的读者，十分感谢您购买《大象-Thinking in UML》一书，这是对我最大的肯定与支持。我相信本书当中一定存在着许多不足，或者给您造成了理解上的困难，或者前后矛盾。请您将您的意见在这个贴子里发表出来，不论是批评、建议、讨论，都非常欢迎。如果有机会再版，您的意见将会是我改进的首要来源... 阅读全文