数学符号介绍

来源：百度知道 编辑：UC知道 时间：2024/05/23 20:15:59
像罗马数字的2那样，有点像圆周率的符号，是什么符号啊

∏这个吗？是圆周率π的大写，这两个都是希腊字母。
∏通常表示求积，于求和符号∑类似，即：
```````n````````````````````````````````````````
```````∏ f(i)`= f(1)*f(2)*f(3)*...*f(n-1)*f(n)``
``````i=1````````````````````````````````````````
`````````````````````````````````````````````````

能否看一下那个符号啊