Programming Rayleigh-Ritz method

[Cameron Laird]

In article <mailman.1006797309.28267.python-list at python.org>,
William Park  <opengeometry at yahoo.ca> wrote:
>On Thu, Nov 22, 2001 at 10:40:39PM +0800, Calvin wrote:
>> Greetings,
>> 	Did anyone have the experience of programming the Rayleigh-Ritz method 
>> using Python. The Rayleigh-Ritz method is a numerical approximation for 
>> solving energy minimizing problem. If you have program FEM in Python. 
>> Could you teach me how to write the algorithm?
>
>Calvin,
>    - if you have C source code, then it's easy to translate it to Python.
>    - if you have the algorithm in pseudo-code, then it's even easier.
>In other words, write it your self. :-)
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			.
			.
"... energy minimizing ..." in a general sense, I
think it should be noted.  Rayleigh-Ritz finds
extrema on finite-dimensional subspaces or mani-
folds.  It's generally presented in terms of
variational calculus.  Rayleigh-Ritz, as opposed
simply to Ritz, typically indicates an interest
in eigenvalues, often of physically-germane par-
tail differential equations.

Python's a worthy vehicle for such work.
-- 

Cameron Laird <Cameron at Lairds.com>
Business:  http://www.Phaseit.net
Personal:  http://starbase.neosoft.com/~claird/home.html