摘要
构造辅助函数是证明微分中值定理的基本方法。本文给出了四种构造辅助函数的方法,并将原 有条件减弱后可得到推广后的微分中值公式。
Construct auxiliary fuction is the fundamental method of proving differential mean vaule theorem.The paper offers four methods of constructing auxiliary fuction.And reducing the former condition results in thedifferential mid-vaule formula that it was generalized.