On 2013-01-04, Barton Willis <willisb at unk.edu> wrote:
> Some time ago, I think I said that I didn't feel the love for the
> adjoint method for matrix inversion. But it does have the advantage of
> never needing to check if some huge expression vanishes..
Maybe so, but it was invertmx which was called from within the
simplifier for matrix to a negative exponent (SIMPNCEXPT -> POWERX ->
$INVERTMX) and invertmx used Gaussian elimination. I think the key to
success is that invertmx bound ratmx to true -- I am assuming there
isn't a fundamental advantage of Gaussian elimination over LU. Or is
there?
best
Robert Dodier