Hello, I had this problem with plotting fans in Sage 8.0 which still works in Sage 7.6. The problem breaks down to the following piece of code:
cones = [Cone([(0,1),(1,0)]),Cone([(-2,-1),(-1,-3)]),Cone([(0,1),(-2,-1)]), Cone([(-1,-3),(1,0)])] F = Fan(cones) F.plot() I get an "unable to simplify to float approximation" error. So looking at geometry/toric_plotter.py and plot/disk.py, one of the calculations it could boil down to is: float(arctan2(RDF(-3),RDF(-1))) Here the same error occurs. Due to the RDF ring, the function arctan2 now returns a good value with a small imaginary part such that it cannot be floated. Hopefully, this issue can be resolved in some way. Carlo Verschoor. -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at https://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
