Comment #1 on issue 1958 by asmeurer: Bugs with greek letter symbols http://code.google.com/p/sympy/issues/detail?id=1958
Actually, the first problem only occurs when just printing the function without arguments:
In [6]: f = Function('phi_nu') In [7]: f Out[7]: phi_nu In [8]: f(x) Out[8]: φ_nu(x) -- You received this message because you are subscribed to the Google Groups "sympy-issues" group. To post to this group, send email to sympy-iss...@googlegroups.com. To unsubscribe from this group, send email to sympy-issues+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sympy-issues?hl=en.