Re: Curl
- To: mathgroup at smc.vnet.net
- Subject: [mg34912] Re: [mg34875] Curl
- From: Vladimir Bondarenko <vvb at mail.strace.net>
- Date: Wed, 12 Jun 2002 02:16:04 -0400 (EDT)
- Reply-to: Vladimir Bondarenko <vvb at mail.strace.net>
- Sender: owner-wri-mathgroup at wolfram.com
Hello John,
You put x and z too close, without a space between them.
It is good way to say Derive you want multiply x by z.
However, for Mathematica xz means a SINGLE variable.
Compare:
<< Calculus`VectorAnalysis`SetCoordinates[Cartesian[x, y, z]];
Curl[{xz, yz, -y^2}]
{-2 y, 0, 0}
Curl[{x z, y z, -y^2}]
{-3 y, x, 0}
Regards,
Vladimir Bondarenko