Functions and parametric surfaces

Visualizing z = f(x, y), or, with polar coordinates, z = f(r, &theta). You can specify any function of x and y (or, in the case of polar coordinates, of r and &theta, writing &theta as t). Parametric surfaces are based on three unit vectors i, j and k in the directions of the x-, y and z-axes, respectively. You can use

This applet was written by Leen Ammeraal and is related to Java programs discussed in Computer Graphics for Java Programmers, 2nd Edition, by Ammeraal and Zhang.