Python, SymPy and Quantum Physics. So far, NumPy/Matplotlib and SymPy have been two separate worlds for me - this blog post shows how to connect these two, meaning to work out your function definitions symbolically with SymPy and then transfer them to NumPy to perform numerical investigations. This is particularly interesting in connection with the qtconsole of ipython, because it only displays matplotlib plots inline, while SymPy plots open in a separate window (as they run via pyglet), which is rather inconvenient for saving the results of your work.