Having trouble trying to do this. (MathLab)

Exercise 1 The factorial of a natural number is defined as Write a Matlab/Octave function compute factorial.m that takes an integer number as input and returns (1). The function should be of the following form function b]compute factorial(n) Input: n: natural number (possibly including 0) Output: b: factorial of n You are not allowed to use the Matlab function factorial (n) in your code