For Matlab linear algebra

clear, close all; clc;

$\%$ for $100$ from $k=2$ to $5$ with increment $1$

for $k=2$:$5$

$\%$ create random matrix of size $k4$

$A=\%$ ADD YOUR CODE HERS

$\%$ find reduced echelon form of $A$

$B=\%$ ADD YOUR CODE HERS

$\%$ display the result

fprintf$(\text{'}$reduced echelon form of $\%d$ x $4$ matrixln', k$)$s

disp$(B)$:

end