Mathematica does this integral wrong?
- To: mathgroup at smc.vnet.net
- Subject: [mg43178] Mathematica does this integral wrong?
- From: "M" <cgi2 at zipmail.com>
- Date: Sat, 16 Aug 2003 02:53:59 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
I have a sum of 2 definite integrals. The integrals are in 1 variable. The integrand has several parameters. I tried doing the integration 3 ways: 1) Put in the parameter values into the integrand itself and then perform the integral. 2) Do the integration first and then evaluate the result for a certain set of parameter values. 3) Put in the parameter values into the integrand itself and then perform the integral Numerically. I get different results; 1) and 3) agree while 2) gives a different result. I think 2) is incorrect; the result should be positive as far as I can see but 2) is negative. I'm attaching a zip of the notebook file. I hope a less than 3kb attachment is okay in this group. [Contact the author to get the attachment - moderator] Thanks -M