Partial completion of ode.py docstrings. Search ALEXTODO comments for the boundaries of remaining work.
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.
Efficient operations of Sparse
simplify col_list and row_list; row and col use slice
Removed redundant code
make submatrix more efficient
Merge pull request #2157 from smichr/matrix

modification of #2125 for SparseMatrix
Expose documentation of the "allhints" list.
Re-indent ode.py docstrings after previous commit.
Format "allhints" documentation.
Don't use double quotes if using backticks.
Don't use mathrm for differentials.
Use e^x instead of exp.
Re-indent ode.py with tw=78.
Use f'(x) instead of \frac{df(x)}{dx}.
Fix partial derivative notation.
Use raw docstring for module (fixes "nth" escaping).