Re: trig substitution
- To: mathgroup at smc.vnet.net
- Subject: [mg44932] Re: trig substitution
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Wed, 10 Dec 2003 04:01:37 -0500 (EST)
- Organization: Universitaet Leipzig
- References: <br41ju$iuf$1@smc.vnet.net>
- Reply-to: kuska at informatik.uni-leipzig.de
- Sender: owner-wri-mathgroup at wolfram.com
Hi, what mathematics do you mean. The mathematics of - undefined integration - how to integrate a function or - how Mathematica integrate a function. The first two problems are subject to undergraduate mathematics and you should consult the standard text books For the third problem, have a look at http://mathworld.wolfram.com/RischAlgorithm.html *and* the references listed there. Regards Jens Tom Radomski wrote: > > I have a problem that I'm having a lot of problems trying to solve. I found > the answer to it on the online integrator but I don't understand the work > behind it. I someone could explain the math behind it that would be greatly > appreciated. > Question: 1/(1+x^2)^2 > ans: [x/(2(1+x^2))]+[(arctan x)/2] > Thanks, > Tom