disp('To verify if u v and w are orthogonal') u=[-1;4;-3] v=[5;2;1] w=[3;-4;-7] disp(w,v,u) disp('u.v=') disp(v'*u) disp('u.w=') disp(u'*w) disp('Since u.w is not equal to zero, the set {u v w} is not orthogonal.')