Exercise 15Write a function Your first name_Last name_Ex15 with three variables x, y, and z as input arguments. These variables can either be scalars, vectors (of same length), or matrices (of same dimensions). Calculate the following three equations and assign the results to the output arguments. PLEASE MAKE sure it works on MATHLAB all answer i seen dont have a working function i keep getting this: Error: Function definition are not supported in this context. Functions can only be created as local or nested functions in code files.