ipython/ipython — pull request #2430 by jenshnielsen (2012-09-25 20:56:10+00:00)
Title: Sympy-extension: render mutable matrix

In sympy 0.7.2dev the default matrix class is now MutableMatrix not Matrix.
This pull request allows sympyextension to also render this class.

Matrix is an alias of MutableMatrix. Possible candidate for backport to 0.13.1
to match the next sympy release.
http://docs.sympy.org/dev/modules/matrices.html#sympy.matrices.matrices.Matrix