Re: Calculating Gradients of Vector Functions
- To: mathgroup at smc.vnet.net
- Subject: [mg41172] Re: Calculating Gradients of Vector Functions
- From: Paul Abbott <paul at physics.uwa.edu.au>
- Date: Tue, 6 May 2003 06:02:23 -0400 (EDT)
- Organization: The University of Western Australia
- References: <b8qopq$847$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
In article <b8qopq$847$1 at smc.vnet.net>,
Stepan Yakovenko <yakovenko at ngs.ru> wrote:
> Is it possible to calculate gradients of complicated vector
> functions in R^N ?
Yes.
> For instance:
>
> \vec \nabla |\vec r| = \frac{\vec r}{|\vec r|}.
>
> (I don't assume that r is 3D vector)
At http://w3.pppl.gov/~hongqin/computerAlgebra.htm you will find reference to
a Mathematica Symbolic Vector Analysis package developed by Hong Qin. I
have made a few minor changes to his Package (correcting some
formatting bugs) and put his Package, Notebooks, and PDF files at
http://www.physics.uwa.edu.au/pub/Mathematica/Calculus/
I suggest putting GeneralVectorAnalysis.m into a folder called Calculus
in the directory returned by evaluating $UserAddOnsDirectory.
Cheers,
Paul
--
Paul Abbott Phone: +61 8 9380 2734
School of Physics, M013 Fax: +61 8 9380 1014
The University of Western Australia (CRICOS Provider No 00126G)
35 Stirling Highway
Crawley WA 6009 mailto:paul at physics.uwa.edu.au
AUSTRALIA http://physics.uwa.edu.au/~paul