This application is a simple 3D function (surface) plotter. It takes as input a text datafile containing the x, y, and z data for a function of the form z=f(x,y), and draws a 3D representation of the function.

Surface now contains within it the 3DFnEdit application to produce data files in the correct format from functions expressed in Basic format.

A number of example datafiles are also provided, together with some example BASIC programs that produce datafiles in the required format.