% Plotclear all;X=rand(5);Y=rand(5);% Original Function f(x) = 2*x1^3-6*x1*x2*(x1 - x2 - 1)z=(2*(X^3))-(6*X*Y*(X - Y - 1));surf(z);axis('ij');xlabel('x1 axis');ylabel('x2 axis');zlabel('z axis');