微积分基本公式的简明证法及其应用

微积分基本公式在微积分的理论和应用中占有十分重要的地位,使学生怎样掌握该公式的证明和应用一直是教学的关键点和难点。其主要原因在于目前教科书中的证明要借助于积分上限的函数及其导数,过于复杂和抽象,使学生难以理解和掌握,因此,它无疑成为长期以来困扰教与学的瓶颈问题。为此,笔者给出该公式的一种简明证法,并讨论了该公式的新用途。主要包括:定积分的值与积分变量的选择无关性;积分上限函数的求导法则的新证法等。这种简明证法和应用具有的实际意义是:该证法使学生易理解和掌握,既克服了现行教科书中的不足,又为教学提供了一条有效途径。

Elegant proof of fundamental formula of calculus and its new applications

The fundamental formula of calculus plays an important role in the theory of calculus and its applications.But the proof of it in current textbooks mainly depends on the concepts of both the integral upper limit function and the derivative of the upper limit's function,which is too complex and Abstract to understand and master.How to master the proof and application of the fundamental formula of calculus is the key point during the advanced mathematics teaching.Thus it has become a bottle-neck problem in te...