Extract the dimension of A using the command size and store the result in the variables m and n$.$

Extract the dimension of B using the command size and store the result in the variables p and q

Use an if statement to perform a check on the dimensions to determine whether the multiplication is defined

If the multiplication is defined:

initialize the vector C as a matrix of zeros of the appropriate dimension

use a single for loop to evaluate the product C $=$ AB$.$ The loop counter should be the variable j$.$ Each iteration of the for loop should evaluate the jth column of the matrix C as the product of A times the jth column of the matrix B$.$ Also, inside the for loop, after you compute the jth column of C$,$ insert the following commands: