Surface graphs let you plot three dimensional data sets and functions. On a surface plot, the X and Y values determine the reference coordinates for the Z values. NExS surface graphs are presented with perspective and shading. The shading can be either that of the surface when illuminated by light from a single point, or it can provide a color shading based on a Z value relative to the maximum and minimum Z values.
Surface graphs can be rotated using the Rotate... option of the Edit menu.