The Spherical Package

This software solves partial differential equations on the two dimensional sphere such as the Jeffery's equation for fiber orientation distributions. The software is described at

The version of the software described in the paper is spherical-2.26. The most recent release of the software is spherical-3.13. It is substantially faster than version 2.26, and includes several corrections.

(Version 3.01 comes in a "cuda" version that is capable of using nvidia graphics cards. This only works for the Folgar-Tucker equation, and seems to be unreliable.)

It may be downloaded here.

This work was supported by the National Science Foundation NSF CMMI 0727399.