Each point P(u,v) of the rectangle is mapped to a three-dimensional point P with coordinates (x(u,v), y(u,v), z(u,v)) in Cartesian coordinate system. Changing the coordinate system transfers point P to the corresponding coordinates.

Note 1:editing the formula has no effect until you click the evaluate button.

In this example torus surface has created by the formula in Cartesian mode:

This dialog box lets you to create or modify the parameters or customize the functions. Mathsurf provides you an easy way to modify the codes. Any time you make an instance of Mathsurf or reset a parameter program will executes the definitions and commands in order of they located in dialog from up to down.

New: You can save the explicit presentation into a text file and load it into another object using load option available in this dialog.