The algebraic surface module identify the singularities of a surface and include these points in the mesh used to generate the surface. Interactivity Ever effort has been taken to make the package as simple and easy to use as possible. It only takes a couple of minutes to learn how to draw and deform surfaces. The range of variables can either be changed with the mouse or by using the keyboard. For the parametrised curve and surface programs these changes instantaneously deform the curve or surface.
Menus allow the control of several other options.
Many equations which occur in singularity theory and differential geometry depend on a large number of parameters. The package makes it particularly easy to work with such objects. When an equation is entered the program will automatically find the names of the parameters and shows them in a window. The values of parameters can now be changed either by clicking on the buttons in the window or by typing in the values. A menu option controls the sensitivity of the button, allowing either small or large changes with each click.