Hi, I uncommented the lines because I don't see where is the error, thank for your help.
I got this error in the above worksheet : graph = plot3d(Omega.expr(XC), (tau,-pi,pi), (ch,0,pi), adaptive=True) + plot3d(0, (tau,-pi,pi), (ch,0,pi), color='yellow', opacity=0.7) #graph = set_axes_labels(graph, 'tau', 'chi', '') show(graph, aspect_ratio=1) ---------------------------------------------------------------------------NameError Traceback (most recent call last)<ipython-input-66-8f9bef209056> in <module>() 7 color='yellow', 8 opacity=RealNumber('0.7'))----> 9 graph = set_axes_labels (graph, 'tau', 'chi', '') 10 show(graph, aspect_ratio=Integer(1)) NameError: name 'set_axes_labels' is not defined -- 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.