Surfaces (3D and anaglyph) in rectangular "z = f (x, y)" and spherical "x=f(a,t), y=f(a,t), z=f(a,t)" coordinates.You can define any function and view its graphical representation.Save/open your surface data.Open any kind of image and use it for textureCapture the screen from the app menu. The image is saved in the Pictures folder.