[boost] What is Lenz's algorithm? (was: Re: Rational comparison w/ continued fractions)

On 12/17/05 5:43 AM, "John Maddock" <john@johnmaddock.co.uk> wrote: [SNIP the lack of usefulness of continued fraction math outside of comparing (less v. equal v. greater) rational numbers]

[Continued fractions are] also extremely important for evaluating numeric approximations of various functions, but rather hard to compute unfortunately. Even so the modified Lenz's algorithm would be a useful addition to Boost at some point.

What's this algorithm? Is it related to the Lenz's Law for electromagnetic physics? (That all I found on Google.) -- Daryle Walker Mac, Internet, and Video Game Junkie darylew AT hotmail DOT com