On Monday, May 19, 2014 9:49:22 AM UTC-4, William wrote: > > On Mon, May 19, 2014 at 6:39 AM, Pierre-Vincent Quéré > <pierre-vin...@ensc-rennes.fr <javascript:>> wrote: > > Hello, > > > > The lines below use to work a few months ago (to draw a polygon). But > today, > > see the error I can read... > > I've tried many times, many solutions, but none worked... > > Any idea, please ? > > > >> L=[1+i,4+i,4+2*i,2+2*i,2+3*i,1+3*i,1+i] > >>list_plot(L,plotjoined=True,aspect_ratio=1) > > Evidently something changed in Sage that broke your code. Maybe there > > > Yes, and this would be serious. http://trac.sagemath.org/ticket/12035 added among other things the following doctests:
sage: list_plot([1, I, pi + I/2, CC(.25, .25)]) sage: list_plot([exp(I*theta) for theta in [0, .2..pi]]) We don't explicitly test plotjoined=True but in that patch at least that case is correctly dealt with, and the code seems to still be the same in http://git.sagemath.org/sage.git/tree/src/sage/plot/plot.py The error message makes it seem like a raw symbolic complex expression like 1+I made it to the "CC(z[1])" spot, but the code says # if we get here, we already did "list(enumerate(data))", so maybe how "tmp = RDF(data[0])" (line 1792) is behaving changed? I can confirm this worked correctly in Sage 5.12. I apologize that I don't have a current version of Sage to check this out on. Can you tell us exactly what version of Sage you are using, and (important) whether you accidentally redefined "i" at some earlier point in your code (say, with an enumeration like "for i in range(5):")? Thanks! - kcrisman -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
