clear;
%This is an example macro for matrix operations.
n = 12;
a = rand(n,n); b = eye(n,n); c = ones(n,n); d = zeros(n,n);
norm(a - (a')')
norm(a - a./c)
norm(a*b - b*a)
norm(a*d)
norm(a*inv(a)+inv(a)*a - 2*b)
y = rand(n,1); norm(a*(a\y) - y)
norm((y'/a)*a - y')
