Dear All,
The following
f(x,y) := x^2+y^2-1 ;
contour_plot(f(x,y),[x,-1.5,1.5],[y,-1.5,1.5],[gnuplot_preamble, "set cntrparam levels discrete 0.0"]) ;
produces a nice-looking plot of the unit circle. However, if I thn
decide I want the (x,y) values on the contour in a
whitespace-separated table and issue
contour_plot(f(x,y),[x,-1.5,1.5],[y,-1.5,1.5],[gnuplot_preamble, "set table 'circletable.dat'; set cntrparam levels discrete 0.0"]) ;
the file circletable.dat is created, but is empty. Any ideas, please?
--
Thanks,
Dan