atan2 is alwas returning values between -pi and pi.
https://docs.python.org/2/library/math.html
Next step is to convert g1>-g1, which will truely follow the CR72 Nomenclature.
For this, the atan2 function is a blocker.
sr #3154: (https://gna.org/support/?3154) Implementation of Baldwin (2014) B14 model - 2-site exact solution model for all time scales.
This follows the tutorial for adding relaxation dispersion models at:
http://wiki.nmr-relax.com/Tutorial_for_adding_relaxation_dispersion_models_to_relax#Debugging
