Xref:	news2.mv.net comp.os.msdos.djgpp:862
From:	Erik Max Francis <max AT alcyone DOT com>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Integrals/Derivatives in C
Date:	Wed, 07 Feb 1996 07:56:04 -0800
Organization:	&tSftDotIotE
Lines:	19
Message-ID:	<3118CB94.57FAFD47@alcyone.com>
References:	<00009419+00000ad1 AT msn DOT com> <1996Feb6 DOT 151808 DOT 2353 AT rcwusr DOT bp DOT com>
NNTP-Posting-Host:	newton.alcyone.com
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Greg Wooledge x5932 wrote:

> I never touched symbolic integration.

Probably rightly so; symbolic integration is doubly hard because not only is
it hard to begin with, and not only does it require a certain level of
expertise (so you're writing an AI program more than a math program), but in
particular some antiderivatives cannot be expressed in closed form; e.g., int
e^(-x^2).  Which means that you'll not only have to decide what to do, but
also decide when you can't do anything.

As you say, though, numerical integration is pretty straightforward.

-- 
Erik Max Francis, &tSftDotIotE. && max AT alcyone DOT darkside DOT com || max AT alcyone DOT com
San Jose, California, U.S.A. && 37 20 07 N 121 53 38 W && the 4th R is respect
H.3`S,3,P,3$S,#$Q,C`Q,3,P,3$S,#$Q,3`Q,3,P,C$Q,#(Q.#`-"C`- && 1love && folasade
Omnia quia sunt, lumina sunt. && GIGO Omega Psi && http://www.alcyone.com/max/
"Out from his breast/his soul went to seek/the doom of the just." -- _Beowulf_

- Raw text -