=== !LaGriT Example: Use PSETS and set Z(x,y) Surface To Max(Z(x,y)) ===
  * 01_input_surfaces
  * 02_input_surfaces
  * 03_output_modified_surface

'''input.lgi'''
{{{
*--* LAGriT Example Input file
*--* Carl Gable

*--* gable -at- lanl -dot- gov
*--*
*--*
*--* Create two quad surface that cross and then use math
*--* functions to make the second surface z coordinate equal
*--* to the first surface z coordinate where the second surface
*--* is below the first surface.
*--*
}}}