How to writ (f) code in Matlab program?

How to write (f) code in Matlab program? (c) Create a variable named mat and assign to it a num_rows times num_columns matrix of random integers chosen uniformly from the closed interval [-50, 50]. (d) Display mat using built-in function disp (). (e) Do the following with nested for-end statements. Do not mean () or sum (). Computer the sum of the elements in each row of matrix mat Display the sum of the elements in each row of matrix mat using fprintf (). Computer the sum of all the elements in matrix mat (f) Computer the mean of all the elements in mat. Do not use functions mean () or sum ()