% ex23.m
N=[1 2 3 4 5];
X=2*N;
disp(X);
X=N/2;
disp(X);
X=N.^-1; % or X=1./N
disp(X);
X=N.^-2; % or X=1./(N.*N) or X=1./N.^2
disp(X);