Xref: news2.mv.net comp.os.msdos.djgpp:862 From: Erik Max Francis 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_