Statistics 简明教程

Statistics - Factorial

阶乘是应用于大于 0 的自然数的函数。阶乘函数的符号是一个感叹号加在数字之后，形式如下：2！

Factorial is a function applied to natural numbers greater than zero. The symbol for the factorial function is an exclamation mark after a number, like this: 2!

Formula

其中——

Where −

  1. ${n!}$ = represents factorial

  2. ${n}$ = Number of sets

Example

Problem Statement:

Problem Statement:

计算 5 的阶乘，即 5！

Calculate the factorial of 5 i.e. 5!.

Solution:

Solution:

相乘从 1 算起直至给定的数字的所有整数。

Multiply all the whole numbers up to the number considered.