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在一个问题中遇到的需要求这样的一个表达式:
图片描述

应该如何计算可以得到结果?如果用龙贝格积分计算是算不出来的,伽马函数用定义算也求不出来。请问应该使用什么算法?


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前面倒是好说,后面的积分不太好算呀


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