Geometric Algebra for Julia

This is work-in-progress straight port of Fontijne's reference implementation of geometric algebra utilities to Julia. The code is right now mostly unperformant and non-idiomatic, but I try to improve it whenever I can.

This project follows the license of the original implementation, GPL2.

Things to do

A list of things to do, in no particular order:

• Rewrite in idiomatic Julia
• Implement general_inverse and utility functions for Multivectors
• Support named basis vectors
• Maybe a builtin support for popular geometry models (conformal, hyperbolic, homogeneous etc)
• A comprehensive test suite
• cos() and sin()
• Multivector types
• meet and join (possibly using the new method described here
• A comprehensive benchmark to track performance improvements/regressions
• Travis-ci support?
• Write documentation
• Use BitArray for bitmaps instead of integers?