函数这个概念最早是由17世纪的德国数学家莱布尼茨提出的.后经300多年的锤炼变革,形成了函数的现代定义形式.但这并不意味

The functions in this concept was first put forward by the German mathematician Leibniz in seventeenth Century.After the change of more than 300 years of temper,to form the modern definition of function.But this does not mean the endof the function concept development.Believe that with the development of other disciplines based on a mathematical concept,function will continue to expand