On Tue, Oct 14, 2008 at 8:07 AM, Marshall Hampton <[EMAIL PROTECTED]> wrote:
>
> I am trying to do a demo for a class and I have encountered a strange
> and very annoying error (or I am missing something).
>
> If I do:
> {{{
> var('x,y')
> f = (x^2+y^2)^(.5)
> cp = contour_plot(f,(-3,3),(-4,4), fill=False, plot_points = 80, cmap
> = 'winter', contours=srange(2.9,3.1,.1))
> g = x^2/4+y^2/9-1
> gp = implicit_plot(g,(-3,3),(-4,4), plot_points = 80)
> pts = point2d([[0,3],[2,0],[-2,0],[0,-3]])
> show(cp+gp+pts,figsize = [7*3/4,7])
> }}}
> then the points with positive coordinates seem misplaced by about 1/10
> of a unit; they should be on the ellipse.
>
> -M. HamptonIf you replace 80 by 500 above then everything looks fine. William --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
