Wallpaper from GCONTOUR Procedure

Abstract:

Procedure GCONTOUR [1] produces contour plots, in which values of three variables x, y, z are represented in two dimensions. One of the variables is a contour variable. Presented here is a pattern showing the values

at the point (A, B). z is the contour variable. The result of the function mod(argument1, argument2) is the remainder when the quotient of argument1 divided by argument2 is calculated…