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标题: one college level problem [打印本页]

作者: QFT 时间: 2006-8-1 06:40
标题: one college level problem

A pity not to have much time to visit this forum.

The following question need some knowledge beyond high school.

It seems somewhat boring.

Find polynomial expansion of (1-z) ^(-t), where |z| < 1. Both t and z are complex numbers.

We have standard solution to this problem by use of Cauchy integral.

But there is another way to solve it by imploying a bit of calculus.

本贴由[QFT]最后编辑于：2006-8-4 17:41:48

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