bc.. The sourceforge archives suck incredibly - they don't show the message. But I found the discussion here: http://www.nabble.com/merging-sympy-plotting-stuff-with-matplotlib-td14549816.html feel free to join. p. Original comment: "http://code.google.com/p/sympy/issues/detail?id=507#c3":http://code.google.com/p/sympy/issues/detail?id=507#c3 p. Original author: "https://code.google.com/u/104039945248245758823/":https://code.google.com/u/104039945248245758823/ 