sage: graphs.WheelGraph(3).is_isomorphic(graphs.CompleteGraph(3)) True But graphs.WheelGraph(3).show()
<https://lh3.googleusercontent.com/-iKLcJ9btZ1I/WlbbWONcvtI/AAAAAAAAMvQ/92jJW86d-n0eQUCTaZoqDZpwnO3eV3vDgCLcBGAs/s1600/sage.png> show(Graph(graphs.WheelGraph(3).edges())) is OK. So I do not know why. -- 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 https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.