Deformable registration in D

[Daniel Keep]

Saaa wrote:
>> Second, the numerical
>> stability of the algorithm increased, helping reduce a major fundamental 
>> issue/flaw in algorithm (Ah, the joys of a continuous algorithm working on
> 
> What does numerical stability actually mean?
> and... what is a continuous algorithm?

I can't think of a formal definition of numerical stability, but it
basically means that an algorithm produces the correct answer to within
a reasonable margin of error.  More at
http://en.wikipedia.org/wiki/Numerical_stability

A continuous algorithm is one which operates over a continuous set of
values.  For instance, integers (1, 7, 42) are discrete, whilst real
numbers (1.2, 7.85, 3.141...) are continuous.  Continuous sets don't
have any "gaps" between members, whilst discrete sets do.

Hope that helps :)

	-- Daniel