Version 1.30b2Please be patient while your browser is loading Surface Plotter classes.

Hints for using Surface Plotter:
Surface plotter
plots an explicitly
defined function z = f(x,y).
All multiplications must use *.
Calculate < draws the function.
Options  Show xy ticks and  Show z ticks puts axes.
Options  gray scale
gives a nice picture. You can drag the function around using your left mouse
button.
Options  Contour
plot gives level curves.
See Help menu in
the applet to look up all functions
Here are some examples:
z=x^2 + y^2
z= cos(x*y)/(x*y)
z = exp(x^2  y^2)
z = if (x>0,x+y,0)
z = if(x <= 0, if(x = 0, 0, 1), 1) (sign function)