#  polar_input.txt
#
#  Discussion:
#
#    Demonstrate how to plot r = 1 + cos ( theta )
#
#  Licensing:
#
#    This code is distributed under the GNU LGPL license.
#
#  Modified:
#
#    14 October 2013
#
#  Author:
#
#    John Burkardt
#
set term png
set output "polar.png"
set grid
set polar
set size ratio 1
set timestamp
plot 1 + cos ( t ) title "R = 1 + COS(T)", \
     1 title "R = 1"
quit