On Mar 12, 5:39 pm, stefan <stejane...@gmail.com> wrote: > Basically, I am trying to plot this expression: > > #sage> fermi(x,y,d,L) = 1 - 1/( exp( ( max(abs(x),abs(y))-L) /d) + 1)
I'm not sure but there might be a bug or problem evaluating the expression. Anyways, going the "pure" python way works: sage: def fermi(x,y,d,L): return 1 - 1/( exp( ( max(abs(x),abs(y))- L) /d) + 1) sage: plot3d(lambda x,y : fermi(x,y,0.2,1), (x,-2,2), (y,-2,2)) Does this look fine? H -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org