Analytic solution for a sphere in a halfspace in a plane wave field.

[lheagy]

From @grosenkj on January 27, 2016 1:57

It would be great to have an analytic solution fro a sphere in a half space in a plane wave fields in SimPEG.

Copied from original issue: simpeg/simpeg#207

[lheagy]

From @grosenkj on April 6, 2016 19:44

Would nice to get this going...

[lheagy]

@grosenkj, I think this is more within the scope of geoana. Do you want to open up an issue over there?