Fix math not displaying correctly in documentation
Fix math not displaying correctly in documentation

This also fixes the following warnings:

python-control/control/statefbk.py:docstring of control.lqe:6: WARNING: Unexpected indentation.
python-control/control/statefbk.py:docstring of control.lqe:36: WARNING: Unexpected indentation.

murrayrm/python-control,python-control/python-control