高年级的同学应该已经开始接触圆周率了。这个特别的常数,代表着圆的周长和直径的比值。相信很多同学跟小编一样,对π有许多疑问,这个小数点后无限循环的常数到底有什么来头呢?π本来是个希腊字母,跟圆周率没什么联系,但著名数学家欧拉从1736年开始在书信和论文中都用π来表示圆周率,后来人们也都效仿他的做法。 Senior students should have started to touch the pi. This particular constant represents the ratio of the circumference of a circle to its diameter. I believe many students, like Xiaobian, have many doubts about π. What is the constant of an infinite loop after the decimal point? Π was originally a Greek letter, and there was no connection with pi, but the well-known mathematician Euler started writing in correspondence in 1736 And papers are used to indicate pi pi, and later people have followed his approach.