plpoin and plsym mark out n points
(x[i],y[i]) with the
specified symbol. The routines differ only in the interpretation
of the symbol
codes. plpoin uses an extended ASCII representation, with the
printable
ASCII codes mapping to the respective characters in the current font, and
the codes from 0-31 mapping to various useful symbols.
In plsym however,
the code is a Hershey font code number. Example programs are provided
which display each of the symbols available using these routines.
plpoin(n,x,y,code); and plsym(n,x,y,code);
n (int, input)
the number of points to plot.
x, y (float *, input)
pointers to arrays of the coordinates of the n points.
code (int, input)
code number of symbol to draw.