ApproxFun/ApproxFun.jl — pull request #109 by dlfivefifty (2014-12-28 06:18:49+00:00)
Title: Feature stride odes

This exploits the case where the even/odd coefficients decouple for ODEs.

The cut off of bandrange was chosen based on a heuristic. For the cos example in the speed test, it led to a 2x speed increase. It can be higher depending on the length of solution/bandwidth.

Next is PDEs which should have a much bigger effect.