OT : Approximate / fast math libraries ?

[Les]

On Sat, 2007-09-01 at 11:43 -0400, Matthew Saltzman wrote:
> On Sat, 2007-09-01 at 09:41 -0500, Michael Hennebry wrote:
> 
> > How much precision do you need?  On what? Why?
> > 
> > At least one person wrote a book on implementing the C standard library.
> > It would probably be a better resource than Numerical Recipes.
> 
> That would be PJ Plauger's The Standard C Library, Prentice Hall, 1992
> 0-13-131509-9.  Most of his math lib implementation is based on Cody and
> Waite, Software Manual for the Elementary Functions, Prentice Hall, 1980
> (sorry, he doesn't give the ISBN).  
> -- 
In general I use most references to give me a look at how others have
solved the problem.  Numerical Recipes often has useful information to
help optimize the code further.  I haven't read Plaugers latest, but I
am sure it is quite good.  I just didn't think of his.  I also use a
very nifty (but old) book called by Robert Garfinkel and George L
Nemhauser.  It was published by Wiley in 1972, but is one of those
volumes that is sort of a standby for me.

Regards,
Les H