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Re: [obm-l] Matriz

Valeu, Junior

Ronaldo Luiz Alonso <rlalonso@lsi.usp.br> escreveu:
O traço de uma matriz (quando ela é a representação de um tensor) dá o máximo 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: Júnior
To: obm-l@mat.puc-rio.br
Sent: Wednesday, April 12, 2006 11:02 AM
Subject: Re: [obm-l] Matriz

Alexandre, traço é a soma dos elementos da diagonal principal. Já tipo de uma matriz nunca ouvi falar.

Júnior.




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