Path: utzoo!attcan!uunet!cbmvax!daveh
From: daveh@cbmvax.UUCP (Dave Haynie)
Newsgroups: comp.sys.amiga
Subject: Re: Complex Numbers in C
Message-ID: <5655@cbmvax.UUCP>
Date: 10 Jan 89 16:51:59 GMT
References: <8166@orstcs.CS.ORST.EDU>
Organization: Commodore Technology, West Chester, PA
Lines: 27

in article <8166@orstcs.CS.ORST.EDU>, usenet@orstcs.CS.ORST.EDU (Usenet programs owner) says:
> Sender:R C Nelson

> Are there any library functions out there for dealing with complex math,
> or will I end up writing them all myself?  Ugh!  (That is the one thing
> FORTRAN has going for it.)  I'm looking for C libraries....
> Thnx,
>  Rolf,  With no fancy sigs yet...

If you're doing lots of stuff with complex numbers, I'd recommend C++ from
Lattice.  It comes with a complex number library, including the following
functions: cos(), cosh(), exp(), log(), pow(), sin(), sinh(), sqrt(), abs(),
real(), imag(), polar(), conj(); and operators: +, -, *, /, ==, !=, +=,
-=, *=, /=, >>, <<.  Since C++ is extensible, you work it pretty much like
you might in fortran:

	complex a, b(1,0), c(0,1), d(5.3,23.7);

	a = (b + d) * c;

And so on.

I 
-- 
Dave Haynie  "The 32 Bit Guy"     Commodore-Amiga  "The Crew That Never Rests"
   {uunet|pyramid|rutgers}!cbmvax!daveh      PLINK: D-DAVE H     BIX: hazy
              Amiga -- It's not just a job, it's an obsession