This is a practice for MATLAB : I have a source code and please implement and provide the matlab code

Question:

using the code below, print "1st 4x4 rows and columns" and follow this with rows 1 to 4 and columns 1 to 4 of matrix "A ". The 4's in "4x4" must be defined as variables, so we could make changes to them later. for example, we could make it print the first 2x3 rows and columns if needed, by having separate variables.

Then, print "last 4x4 rows and columns" and follow this with the last 4 rows and last 4 columns of "A". your code must work from the number of rows and columns defined with VALR and VALX.

source code:

VALR = 10; % setting VALR to 10 VALX = 10; % setting VALX to 10 rng(3); % using rng(3) A = randi(100, VALR, VALX) % using randi to create a matrix of VALRxVALX with max as 100 size(A) % printing size of A I = eye(VALR, VALX) % creating eye matrix A*I % Multiplying A with I as matrix A.*I % Multiplying A with I element wise