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Thu Sep 17 11:21:52 CEST 2009

Echelon form

Seems to be working.  The only problem is the staging of pivoting,
since this has an influence on the data flow.

Ok, what I want is not echelon form, but gauss or gauss-jordan
elimination.  The inner loop does this:

. | ....        . / 0 | ....
P | ....   ->   P / 1 | ....
. | ....          0   | ....

There are two parameters: wheter to scale the pivot (P/1) and whether
to eliminate the top rows to zero (gauss-jordan) or not (gauss).

Ok. moved to gauss-jordan elimination.



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