[ODE] ODE announcement: new iterative solver

[Russ Smith]

> 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 quickly. i
have not actually done tests in this case though. detailed profiling
will be done this week.

russ.

-- 
Russell Smith
http://www.q12.org