MathGroup Archive 2003

[Date Index] [Thread Index] [Author Index]

Search the Archive

Wrong partial derivatives calculated

  • To: mathgroup at smc.vnet.net
  • Subject: [mg41131] Wrong partial derivatives calculated
  • From: "David" <david at hushmail.com>
  • Date: Mon, 5 May 2003 02:40:28 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

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




  • Prev by Date: Re: correlation among random numbers
  • Next by Date: Show problem, please help!
  • Previous by thread: Wave guides
  • Next by thread: RE: Wrong partial derivatives calculated