...PostScript
PostScript is a trademark of Adobe Systems, Inc.
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...interface.
X-Window System is a trademark of the Massachusetts Institute of Technology.
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...triangles.
PLTMG reorders vertices as necessary to insure a counterclockwise orientation for elements.
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...arbitrary.
PLTMG orders the vertices of boundary edges to correspond to a left-handed (usually counterclockwise, except for holes) traversal of the boundary.
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...points
Earlier versions of PLTMG used the determinant of the Jacobian to avoid this complication, but this alternative is no longer viable. Since continuation can now be carried out on any mesh, not just the coarse mesh, the LDU factorization of the Jacobian is no longer available.
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...function
For the actual magnitude, the surface of each triangular element is not necessarily a plane, making the hidden suface problem more difficult.

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...colors
If MXCOLR<8, the coloring may be different than indicated.
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Randolph E. Bank
Fri Apr 4 12:02:05 PST 1997