D.1. - Plane curves
The command file
curves
displays 12 curves, each in a small
window.
The data for the curves is supplied by the user function
curves.2,
which generates plane curves using formulas taken from
Standard Mathematical Tables
(Cleveland,
CRC
Press, 1976).
The command file
curves
calls another command file,
curves.p1,
which is nested and is called with four arguments.
The first two values
specify the location of the small windows.
The next two arguments,
each of which is enclosed in quotes, set the parameters for the function
curves.2.
The third argument gives the range of the type 2
user function parametric variable, while the fourth selects and parameterizes
the particular curve.
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