You might want to use implicit_plot instead:
var('x,y')
b = x^2+y^2==4
c = implicit_plot(b,(x,-2,2),(y,-2,2),color='blue')
c.save('ram.png')/Håkan -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
