Write a function called triple (in a file called 'triple.m'). That takes a single variable x and returns a single variable in which every element of x is multiplied by 3. Make sure to properly construct the help text for the function in the first comment block. Be sure to include an H1 line.

From within 'hw4.m' write a series of expressions that demonstrate the triple function being used a variety of input including both scalers and arrays. Also make sure to demonstrate that its help text works properly.