n to n+1: sec(arctan(sec(arctan...(n)...))), repeat 2n+1 times
回复:SAP智力题 任一个整数变任一个整数
本帖于 2010-01-16 14:52:24 时间, 由普通用户 康MM 编辑
n to n+1: sec(arctan(sec(arctan...(n)...))), repeat 2n+1 times
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