函数是数学中的重要概念之一。它的发展经历了漫长的道路。简要回顾一下它的发展过程,对教学是有好处的。最初使用“函数”一词的,当推德国的数学家莱布尼兹(Liebniz 1646—1716),他把函数作为幂(即x,x~2,x~3,…)的同义语使用。嗣后,1718年约翰·伯努利(JeanBernoulli,1667—1748)给出定义:“由任一变数和常数的任意形式所构成的量,叫做这一变数的函数”。换句话说,就是由x The function is one of the important concepts in mathematics. Its development has come a long way. A brief review of its development process is good for teaching. The word “function” was originally used when pushing the German mathematician Leibniz (1646-1716) to use the function as a synonym for the power (ie, x, x~2, x~3, ...). . Later, in 1718, Jean Bernoulli (1667-1748) gave the definition: “A quantity composed of any arbitrary form of variables and constants is called a function of this variable.” In other words, it’s up to x