SpaceCurves.sea.hqx

                       Space Curves
                       David Isaak
                      P.O. Box 9851
                   Saskatoon, sk.s7k 7z2
                       Saskatchewan
                         CANADA

This is a progam to draw cross sections of "surfaces."  Expressions
                x(a,b), y(a,b), and z(a,b)
are enterend using reverse Polish notation.  The graph whose x, y, and
z coordinates satisfy the above expressions for appropriate a and b
is then plotted.  The program is written in FORTH and the language's 
built-in functions can be used in the formula entry for the surface.

Several examples are included with the program itself.  These can
be used as examples or guidelines when writing new expressions.

The program requires no FPU.  Color is useful, though.

This was tested on a PowerMac, and it ran with no difficulties.

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Location in Mathematics Archives:
     Anonymous FTP:
        /mac/calculus
        /mac/graphingAids
        /mac/miscellaneous

     Gopher:
       (First select "Software" then "Macintosh software arranged
        by subjects")
        Calculus / Space Curves
        Graphing Aids / Space Curves
        Miscellaneous / Space Curves

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