How to integrate a function over a polygon

*To*: mathgroup at smc.vnet.net*Subject*: [mg123099] How to integrate a function over a polygon*From*: Mikael <mikaen.anderson.1969 at gmail.com>*Date*: Wed, 23 Nov 2011 07:07:00 -0500 (EST)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com

The subject line asks the general question but to be more specific suppose I have a 2-dimentional unit simplex defined as Polygon[{{1, 0, 0}, {0, 1, 0}, {0, 0, 1}}]. I winder how I can integrate a function f(x,y) over this simplex. Thanks.

**Follow-Ups**:**Re: How to integrate a function over a polygon***From:*DrMajorBob <btreat1@austin.rr.com>