MaplePrimes - answers and comments on Question, gradient of a tensor??

I answered my own ?? but I am not sure I know how to

tsunamiBTP — Mon, 15 Feb 2010 10:07:22 Z

It is the DIVERGENCE I want. Any feedback or example how to make it work would be a help.

Why is MAPLE choking on this?????????

tsunamiBTP — Mon, 15 Feb 2010 21:54:20 Z

see worksheet

<a href='http://www.mapleprimes.com:8080/maplenet/primes/worksheet/9288_probset3.mw'>View 9288_probset3.mw on MapleNet</a> or <a href='http://www.mapleprimes.com/files/9288_probset3.mw'>Download 9288_probset3.mw</a><br/><a href='http://www.mapleprimes.com/viewfile/4149'>View file details</a>

U can try this link to the sheet as well

tsunamiBTP — Mon, 15 Feb 2010 21:59:11 Z

http://www.mapleprimes.com:8080/maplenet/primes/worksheet/9288_probset3.mw

wrong argument

jakubi — Tue, 16 Feb 2010 05:43:45 Z

After ?VectorCalculus[Divergence], the argument should be a vector field or a Vector valued procedure. So, actually it should produce an error message as in:

with(VectorCalculus):
sigma := Matrix(3, 3, {(1, 1) = A*x^2, (1, 2) = 2*A*x*y, (1, 3) = 0,
 (2, 1) = 0, (2, 2) = A*y^2, (2, 3) = 0, (3, 1) = 0, (3, 2) = 0, 
(3, 3) = 1}):

Divergence(sigma);
Error, invalid input: too many and/or wrong type of arguments 
passed to VectorCalculus:-Divergence; first unused argument 
is Matrix(3, 3, [[...],[...],[...]], datatype = anything)