求一个最小值，用循环求比较慢。

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bidefe
bidefe on 25 Nov 2022
1+1/2+1/3+......+1/(n-1)+1/n>30
式子如上，求使上面式子成立的n的最小值，用循环求比较慢，用fminsearch或者fminbnd怎么求呢？

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