f2_18a.m

matlab的一些例子,对入门的新手有帮助

clear, clf
x_tilde = -2:.2:2;
y_tilde = -2:.2:2;
[x,y] = meshgrid(x_tilde,y_tilde);
z = x .* exp(-x.^2 - y.^2);
mesh(x,y,z)
title('This is a 3-D plot of  z = x * exp(-x^2 - y^2)')
xlabel('x'); ylabel('y'); zlabel('z');