astropy/astropy — pull request #2038 by larrybradley (2014-02-03 19:22:25+00:00)
Title: Fixed Gaussian2D model

These are fixes to the ``Gaussian2D`` model. Specifically, the ``b`` parameter was incorrect in the code (but correct in the docs). Also, the ``a`` parameter was incorrect in the docs (but correct in the code). This PR also updates the derivatives based on the correct ``b`` value. The other changes represent some refactoring to hopefully make things a little clearer/cleaner.