* Add functions for calculating reflectance and transmission - useful for correcting for lack of AR coatings in GRASP PO calculations of lens and dielectrics.
0.3.4
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* Add scaling of fields and grids by factors
0.3.3
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* Bug fixes to plot
0.3.2
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* Add useful functions and functionality for plotting and combining different grids and fields in `plot` submodule.
0.3.1
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* Adds a method for summing fields within a grid object (e.g. to make an incoherent sum over frequencies) and a function for adding grid (e.g. to add one analysis output to another).