On Mar 22, 2009, at 10:33 AM, Henryk Trappmann wrote: > > On Mar 22, 3:45 pm, Carl Witty <carl.wi...@gmail.com> wrote: >> You can get a nicer plot by either increasing the plot_points, or >> decreasing the range: >> >> parametric_plot((lambda x: arctan(x),lambda x: >> arctan(x)**2),(-1000,1000),marker='.', plot_points=10000) >> >> parametric_plot((lambda x: arctan(x),lambda x: >> arctan(x)**2),(-10,10),marker='.') > > But I think that should be automatically handled by parametric_plot. > You just can look at the angle at each inner point of the curve and if > they are > too much off from 180 degree you insert new points left and right of > that point. > Of course only if the points are not already close, to support non- > smooth curves as well. > > I just wrote that myself. With the other advantage that also higher > than float precision input works. > It would be very cumbersome to manually adapt the number of > plot_points for every single plot. > And usually changing the range of a curve is not an option.
Do you mean something like http://trac.sagemath.org/sage_trac/ticket/ 3813 , and if so, why isn't this used by default? - Robert --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
