> with(plots):with(plottools):

> implicitplot3d(y^2 = x^3 + x^2*z^2, x = -4..3, y = -10..10, z = -2..2, numpoints = 50000);

> animate(max(x^3 + x^2*t^2,0)^(0.5), x = -4..3,t = -2..2, frames = 200, color = blue, thickness = 3);

>