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matrix decompositions fails on Max os X 10.2
- From: "Erik Ø. Sørensen" <erik dot sorensen at nhh dot no>
- To: <gsl-discuss at sources dot redhat dot com>
- Date: Thu, 5 Sep 2002 11:37:51 -0400 (EDT)
- Subject: matrix decompositions fails on Max os X 10.2
Matrix decompositions seem to fail:
PASS: bidiag_decomp m(5,3)
( 9, 7)[0,0]: 1.00000095367431574 1
( 9, 7)[0,1]: 0.500000476837157981 0.5
( 9, 7)[0,3]: 0.250000238418579046 0.25
( 9, 7)[2,1]: 0.250000238418578935 0.25
( 9, 7)[3,4]: 0.12500011920928944 0.125
( 9, 7)[4,3]: 0.125000119209289468 0.125
( 9, 7)[5,2]: 0.125000119209289468 0.125
( 9, 7)[6,1]: 0.12500011920928944 0.125
FAIL: bidiag_decomp m(9,7)
( 2, 2)[0,1]: 0.500000476837157759 0.5
( 2, 2)[1,0]: 0.500000476837157759 0.5
FAIL: bidiag_decomp hilbert(2)
( 3, 3)[0,0]: 1.00000095367431574 1
and it goes on, some of the decompositions passing, many of them failing,
seems to be mainly in the 7th to 9th significant digits. Would be very
grateful for any help with what causes this -- I have never had any
problems with gsl on the linux laptop which has suffered massive hardware
failure.
Thanks,
Erik
--
Erik Øiolf Sørensen <mailto:erik.sorensen@nhh.no>
phd student <http://www.geocities.com/erik_oiolf/>
Department of Economics, Norwegian School of Economics
Visiting Queen's University, Kingston, Ontario.
phone, office: (+1) 613-533-6000, ext. 74030.