Re: Wrong partial derivatives calculated
- To: mathgroup at smc.vnet.net
- Subject: [mg41159] Re: [mg41131] Wrong partial derivatives calculated
- From: Bobby Treat <drmajorbob+MathGroup3528 at mailblocks.com>
- Date: Tue, 6 May 2003 05:59:06 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
In x y, you're leaving out the space. Bobby -----Original Message----- From: David <david at hushmail.com> To: mathgroup at smc.vnet.net Subject: [mg41159] [mg41131] Wrong partial derivatives calculated When I calculate (D[x^2 + xy + y^2, x) mathematica gives me 2y and when I calculate D[x^2 + xy + y^2, y) I get 2x. These are wrong answers -- have I got the syntax right? I'm trying to find partial derivatives of x^2 + xy + y^2 with respect to x and y. Thanks, David