Re: line integral

*To*: mathgroup at smc.vnet.net*Subject*: [mg22250] Re: line integral*From*: "Kevin J. McCann" <kevin.mccann at jhuapl.edu>*Date*: Sat, 19 Feb 2000 01:33:53 -0500 (EST)*Organization*: Johns Hopkins University Applied Physics Lab, Laurel, MD, USA*References*: <88jvs3$9q2@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

You can do numerical contour/line integrals, e.g. her is an integral around a square contour NIntegrate[1/z, {z, 1 - I, 1 + I, -1 + I, -1 - I, 1 - I}] Note that you can also use Integrate instead, but you don't always get the right answer: Integrate[1/z, {z, 1 - I, 1 + I, -1 + I, -1 - I, 1 - I}] gives zero instead of 2 Pi I -- Kevin J. McCann Johns Hopkins University APL Ling Zhang <mathfeel at home.com> wrote in message news:88jvs3$9q2 at smc.vnet.net... > can we do line integral with mathematica? or do we have to transfer it by > either theorems (green, gauss, stroke) or parametrize it? > > REGARD > > MZ > >