Re: [obm-l] Matriz

[Alexandre Bastos <alexandreobm@xxxxxxxxxxxx>]

Valeu, Junior

Ronaldo Luiz Alonso <rlalonso@lsi.usp.br> escreveu:

O tra�o de uma matriz (quando ela � a representa��o de um tensor) d� o m�ximo stress permitido:

In the case of a fluid, Pascal's law shows that the hydrostatic stress is the same in all directions, at least to a first approximation, so can be captured by the scalar quantity pressure. Thus, in the case of a solid, the hydrostatic (or isostatic) pressure p is defined as one third of the trace of the tensor, i.e., the mean of the diagonal terms.

 

http://en.wikipedia.org/wiki/Stress_%28physics%29

----- Original Message -----

From: J�nior

To: obm-l@mat.puc-rio.br

Sent: Wednesday, April 12, 2006 11:02 AM

Subject: Re: [obm-l] Matriz

Alexandre, tra�o � a soma dos elementos da diagonal principal. J� tipo de uma matriz nunca ouvi falar.

J�nior.

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