有關凹凸性的一道證明 -- 兼論使用泰勒展開的一個易錯點

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Posted by admin | Posted in 未分類 | Posted on 01-08-2018

 

書中曾介紹幾個凹凸性的不同定義,在某些條件成立時定義間可互推,有時候這就是考題來源。
本文介紹其中一種考題,並藉此釐清一個錯誤的證明。

 

 

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