Hello, On Tue, Aug 26, 2008 at 8:47 PM, kcrisman <[EMAIL PROTECTED]> wrote: > > There have been tons of great improvements to the plotting making > their way through trac lately. Do any of those changes for ranges > etc. deal with the very weird output one gets for e.g. > > sage: plot((x-1)/(x+2),-4,4) > > or, worse, > > sage: plot(tan,-20,20) > > In both cases, Sage isn't "recognizing" the asymptotes, and then the > scale gets thrown off, not to mention the non-existent-but-plotted > connections across discontinuities.
Nope, none of these are fixed by the new changes. I tried Maple and it did the same thing -- I don't know what Mathematica does. You can do these as a workaround: sage: plot(tan,-20,20).show(ymin=-5, ymax=5) sage: plot((x-1)/(x+2),-4,4).show(ymin=-10, ymax=10) I don't know the best way to be "smart" about fixing this such as how much of the asymptote to include, etc. > PS - related to this are two points which don't seem to fit elsewhere > but about which I am curious: > 1) It would be useful for those involved to put a summary of the > plotting improvements/changes in internals on a wiki page, once the > whole overhaul is complete. I'll do this in the next day or two. > 2) Specifically, will the old syntax plot(sin,-5,5) continue to be > valid under the new plot(sin,(-5,5)) syntax, or will it be completely > deprecated? Despite the logic of the new syntax, the old one is > REALLY convenient and intuitive, and it would be a shame to have to > change all those old worksheets... plot(sin, -5, 5) still works. --Mike --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
