(Comp.sys.hp48)
Item: 2395 by dougc@bert.cs.byu.edu [Douglas R. Cannon]
Subj: Circle drawing.
Date: 21 Dec 1992

Try the program CIRCLE on Goodies disk #7.  It is very fast.

BTW, the goodies disk index has no name for the author of the program.
Christophe NGUYEN (same guy that wrote TRON) is the author.
[Thanx, Doug. -jkh-]

CIRCLE takes 2 arguments on entry:

-  A real for the diameter of the circle.  If this number is negative,
   the CIRCLE will draw a white circle with a diameter that is the absolute
   value of the real given.

-  A complex number containing the coordinates at which to draw the circle.

These two arguments are left on the stack, so if you don't need them, then
you should execute a DROP2.

Enjoy!

-Doug Cannon