#Header Begins--Do not remove##################################################
#
#	Maple code to plot a circle of radius one.
#
#	(c) Eugene Fiume, University of Toronto, 1995.
#
#	You are permitted to use this code for noncommercial, educational
#	purposes only.  This header must not be removed from this file.
#
#Header Ends--Do not remove####################################################

x := cos(theta):
y := sin(theta):

plot({ [theta,x,theta=0..2*Pi], [y,theta,theta=0..2*Pi], [x,y,theta=0..2*Pi]});