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Factorial
Reading time: 1minReturns the factorial of a number.
Syntax
Integer!
factorial(Integer, Integer)
Description
Given an integer n in the interval [1,65535], returns the factorial, usually denoted by n!, defined as the product of all integers between 1 and n: n!=1·2·3⋯(n-1)·n. By convention, 0!=1.
Given two integers n and k, returns the following computation: n·(n-k)·(n-2k)⋯a, with 1≤a<k
