Partial completion of ode.py docstrings. Search ALEXTODO comments for the boundaries of remaining work.
ZeroMatrix.__nonzero__ returns False
Don't use :math: (just use backticks).
Finish docstrings from previous commit.
Fix typo, "that that" -> "that the".
Another instance of adding a space (\\,) prior to a dx.
Merge branch 'master' of github.com:sympy/sympy
Trace.doit() produces Sum
MatMul.doit supports deep
add trace function
trace doctest - add use_unicode=False
add matrix factorizations
Factorizations preserve real/complex element types
explicit import in test_factorizations
Trace.doit calls obligatory doit on Sum
Expose documentation of the "allhints" list.
Re-indent ode.py docstrings after previous commit.
Format "allhints" documentation.
Identity sympifys arg
Add trivial Matrix.doit()