RE: [boost] Re: Review Request: Special functions, Quaternions, Octonions

From: Paul A. Bristow (pbristow_at_[hidden])
Date: 2001-04-12 12:20:08

A public domain library of stats functions by Brown, Lovato and Russell,
called DCDFLIB dated 1997 provides a possible starting point,
but it is C and looks as though it has been translated from FORTRAN (ugh!)
(A FORTRAn version is available - say no more...)

A real Standard C++ version would be much nicer.

see odin.mda.uth.tmc.edu   /pub/src/dcdflib.c-1.1.tar.gz

FORTRAN succeeds because of the bottomless pit of working subroutines.
C++ needs these too!

Paul

> -----Original Message-----
> From: Peter Schmitteckert (boost) [mailto:boost_at_[hidden]]
> Sent: Thursday, April 12, 2001 10:44 AM
> To: boost_at_[hidden]
> Subject: Re: [boost] Re: Review Request: Special functions, Quaternions,
> Octonions
>
>
> On Wednesday 11 April 2001 23:50, Hubert HOLIN wrote:
> [...]
> > 		Actually, a "special function" is any function one cares to
> > name... Those in A&S are merely some of the most well-known
> > (essentially because they are the most usefull).
> >
> > 		That being said, calling the file as I did
> > "special_functions.hpp" is indeed pompously overblown...
> >
> > 		I would like the name to stay, however, if only as a place
> > holder. It is my hope that it will serve as the nucleus of a bona fide
> > special functions library (note that my implementations there are
> > simply stop-gap entries of some of the functions I happened to need at
> > some time or another, including for the quaternions, in addition to
> > being ridiculously few). Ideally, this will encompass the successor to
> > A&S (http://dlmf.nist.gov/). That will necessarilly entail the
> This would be really great, but lots of work.
>
> > > BTW: Looking at this package I wondered if someone is working
> > > 	on Clebsch-Gordon coefficients and 3j, 6j and 9j symbols?
> >
> > P.S.: Well, wouldn't that be a nice thing to do? ;-)
> Besides being a nice thing to _have_,  I'm not sure if implementing these
> might be fun. But I'm afraid that around  christmas this year I may have
> a need for  the 3j symbols.  So I might boostify it if I find helpers to
> discuss the implementation, e.g. should one store dynamically
> look-up tables
> etc.
>
> Bets wishes
> Peter
>
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