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Re: doubt in colamd
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From: |
Bill Denney |
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Subject: |
Re: doubt in colamd |
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Date: |
Wed, 27 Jul 2005 08:07:12 -0400 (EDT) |
On Tue, 26 Jul 2005, Jorge Barros de Abreu wrote:
Hi for All.
In "help colamd" there is in raw 10 the expression "LU factor". In its
context what is "LU" ?
L and U are lower and upper triangular matrices that make some matrix
operations faster. They are just the common variable names for this
method of solving problems of the form
A * x = B
by converting it to
L * U * x = B
first.
Bill
--
To criticize the incompetent is easy; to criticize the competent is
difficult.
-- unknown
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