3 Commits

Author	SHA1	Message	Date
Benoit Jacob	09ef7db9d9	Add partial pivoting runtime option to LU. ... Note: in fact, inverse() always uses partial pivoting because the algo currently used doesn't make sense with complete pivoting. No num stability issue so far even with size 200x200. If there is any problem we can of course reimplement inverse on top of LU.	2008-08-05 15:43:11 +00:00
Benoit Jacob	79a0feee68	big performance improvement in inverse and LU	2008-08-04 23:34:21 +00:00
Benoit Jacob	c2f8ecf466	* LU decomposition, supporting all rectangular matrices, with full ... pivoting for better numerical stability. For now the only application is determinant. * New determinant unit-test. * Disable most of Swap.h for now as it makes LU fail (mysterious). Anyway Swap needs a big overhaul as proposed on IRC. * Remnants of old class Inverse removed. * Some warnings fixed.	2008-08-04 04:45:59 +00:00