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  Essential Boundary Conditions or Multipoint Constraints (MPC)
                       [incomplete list]
    (the command to produce *.ps files are now commented out)
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bc_flags_plot.m: bc_flags_plot () displays the actual mesh with 
  node numbers and integer boundary condition flags displayed on
  the mesh wherever the flags are non_zero. It requires files
  msh_bc_xyz.tmp and msh_typ_nodes.tmp. Output is bc_flags_plot.ps
  Any digit > 1 denotes a MPC associated with that nodal component.

bc_values_input.m: bc_values_input (i_p) displays the actual mesh with
  assigned essential boundary condition values from msh_bc_values.tmp
  which is usually converted from a mesh generator output file named
  msh_bc_values.dat.  Output is bc_values_input.ps.

bc_values_plot.m: bc_values_plot (i_p) displays the actual mesh with 
  node numbers and assigned essential boundary condition values where 
  the i_p component of the soultion has a non-zero integer boundary 
  condition flag.  The value of i_p defaults to unity if omitted. It 
  requires files are msh_bc_xyz.tmp, msh_typ_nodes.tmp, and computed
  node_results.tmp. Since an exact solution can be used to override
  input EBC values the node_results can differ from msh_bc_values used
  above in bc_values_input.m. Output is bc_values_plot.ps