2009年4月26日

The Origins of Complex Numbers

摘要： http://math.fullerton.edu/mathews/n2003/ComplexNumberOrigin.html Overview Get ready for a treat. You're about to begin studying some of the most beautiful ideas in mathematics. They are ideas with... 阅读全文

posted @ 2009-04-26 18:28 smwikipedia 阅读(365) 评论(0) 推荐(0) 编辑

Formal development of Complex Number

摘要： http://en.wikipedia.org/wiki/Complex_number#Formal_development In a rigorous setting, it is not acceptable to simply assume that there exists a number whose square is -1. The definition must therefore... 阅读全文

posted @ 2009-04-26 17:20 smwikipedia 阅读(360) 评论(0) 推荐(0) 编辑

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