1. The problem statement, all variables and given/known data A = [1 3; 2 4]; %Okay, so we are starting with this matrix N = 2; %Here we are setting N equal to '2' for k = 1:N %So here we have a 'for loop' for variable 'k' starting at 1 in increments of '1' up to 'N', which %happens to be '2' so once this function gets to '2' it stops X(k) = 0; %Sets some 'function X' with variable 'k' equal to '0' end %Our loop ends with X(1)=0 and X(2)=0 for k = 1:N %Start of a new loop, same as before. for m = 1:N %Another loop written in our other loop. X(k) = X(k) + abs(A(m, k)); %Here we are taking our X(k) from earlier? and now adding the absolute value of %our matrix A as a fucntion of m and k? end end F = X(N); for k = 1:N-1 if X(k) > F F = X(k); end end I am having trouble understanding what this code is supposed to do. The comments are my attempt at trying to understand it and as you can see I am getting lost at the second loop and the 'abs' command (possibly messing up earlier).