[ODE] ODE announcement: new iterative solver

[Aras Pranckevicius]

> > Sounds great.  Out of interest, how does this currently
> > compare with StepFast in terms of speed/size/stability?  I
> > think that's a more interesting comparison than with stepslow,
> > since I guess the methods are a lot closer.
> 
> i'm anticipating QuickStep will be faster: it's a far simpler chunk 
> of code that implements an algorithm that should converge more 

Theoretically, it should be better than StepFast... As Alen recently pointed 
out, StepFast isn't "iterative" method at all, it just subdivides timestep 
and does serial solving of joints.

(and I always thought that StepFast doesn't just subdivide timestep, but 
really does the "iterations"! :))


Aras Pranckevicius aka NeARAZ
http://www.gim.ktu.lt/nesnausk/nearaz/