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           Exact Nodal Results Displays (when available)
                       [incomplete list]
    (the command to produce *.ps files are now commented out)
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  Sometimes the user can provide routines with the exact solution.
Plots similar to those above, but using exact answers at the nodes
(but thus non-exact inside an element) are:

  contour_exact.m

  contour_exact_on_mesh.m

  exact_1d_graph.m exact_1d_graph (i_p) plots a line graph of the
    exact value of nodal component i_p. The exact points are joined
    by straight lines, which are usually approximate. Also shown
    are the node and element numbers. Output is exact_#_graph.ps.

  exact_3d_graph.m

  exact_and_fe_1d_graph.m exact_and_fe_1d_graph (i_p) plots a pair of
    line graphs through the exact (solid lines) and FEA (dashed) nodal
    values of the i_p component. The nodal values are joined by
    straight lines, which are usually approximate. Also shown are the 
    node and element numbers. Output is ex_fe_#_graph.ps.

  exact_solution.m (surface plot)

  exact_shrink_solution.m

  smooth_exact_solution.m