21 Commits

Author SHA1 Message Date
Hauke Heibel
c738cd56eb Renamed cleantype to remove_all since it is close to remove_{const|pointer|reference}. 2010-10-26 16:47:01 +02:00
Benoit Jacob
4716040703 bug #86 : use internal:: namespace instead of ei_ prefix 2010-10-25 10:15:22 -04:00
Gael Guennebaud
cac147ba10 add support for determinant on empty matrix 2010-07-19 10:45:06 +02:00
Hauke Heibel
aa6570c3a3 Added a missing inline hints.
Removed a useless Nested temporary.
2010-03-03 15:24:58 +01:00
Gael Guennebaud
a76950bdab fix a couple of ICE with gcc 4.0.1 2010-02-12 09:41:56 +01:00
Gael Guennebaud
c5d7c9f0de remove the Triangular suffix to Upper, Lower, UnitLower, etc,
and remove the respective bit flags
2010-01-07 21:15:32 +01:00
Benoit Jacob
d2e44f2636 * 4x4 inverse: revert to cofactors method
* inverse tests: use createRandomMatrixOfRank, use more strict precision
* tests: createRandomMatrixOfRank: support 1x1 matrices
* determinant: nest the xpr
* Minor: add comment
2009-12-09 12:43:25 -05:00
Benoit Jacob
2840ac7e94 big huge changes, so i dont remember everything.
* renaming, e.g. LU ---> FullPivLU
* split tests framework: more robust, e.g. dont generate empty tests if a number is skipped
* make all remaining tests use that splitting, as needed.
* Fix 4x4 inversion (see stable branch)
* Transform::inverse() and geo_transform test : adapt to new inverse() API, it was also trying to instantiate inverse() for 3x4 matrices.
* CMakeLists: more robust regexp to parse the version number
* misc fixes in unit tests
2009-10-28 18:19:29 -04:00
Gael Guennebaud
9822493aaf fixes in determinant and homogeneous 2009-08-06 16:54:55 +02:00
Benoit Jacob
6347b1db5b remove sentence "Eigen itself is part of the KDE project."
it never made very precise sense. but now does it still make any?
2009-05-22 20:25:33 +02:00
Benoit Jacob
7c14e1eac4 add partial-pivoting LU decomposition
the name 'PartialLU' is not meant to be definitive!
make inverse() and determinant() use it, so it's *almost* considered
well tested.
2009-05-13 02:02:22 +00:00
Benoit Jacob
00f89a8f37 Update e-mail address 2008-11-24 13:40:43 +00:00
Benoit Jacob
a41f2b4216 * fix bug in SwapWrapper : store the wrapped expression by reference
* optimize setIdentity: when the matrix is large enough it is better to
  setZero() and overwrite the diagonal
* start of LU solver, disabled for now
2008-08-09 04:37:09 +00:00
Benoit Jacob
9bbe396939 forgot to remove that old code 2008-08-07 21:50:29 +00:00
Benoit Jacob
5f350448e1 - add kernel computation using the triangular solver
- take advantage of the fact that our LU dec sorts the eigenvalues of U
in decreasing order
- add meta selector in determinant
2008-08-07 21:48:21 +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
Benoit Jacob
75de41a00b big changes in Doxygen configuration; work around bug with doxygen parsing of
initialized enum values showing the last word the initializer instead of the actual
enum value's name; add some more docs.
2008-06-02 20:08:37 +00:00
Benoit Jacob
953efdbfe7 - introduce Part and Extract classes, splitting and extending the former
Triangular class
- full meta-unrolling in Part
- move inverseProduct() to MatrixBase
- compilation fix in ProductWIP: introduce a meta-selector to only do
  direct access on types that support it.
- phase out the old Product, remove the WIP_DIRTY stuff.
- misc renaming and fixes
2008-05-27 05:47:30 +00:00
Gael Guennebaud
4c92150676 Added Triangular expression to extract upper or lower (strictly or not)
part of a matrix. Triangular also provide an optimised method for forward
and backward substitution. Further optimizations regarding assignments and
products might come later.

Updated determinant() to take into account triangular matrices.

Started the QR module with a QR decompostion algorithm.
Help needed to build a QR algorithm (eigen solver) based on it.
2008-04-26 18:26:05 +00:00
Gael Guennebaud
62bf0bbd59 fix a bug in determinant of 4x4 matrices and a small type issue in Inverse 2008-04-26 08:56:52 +00:00
Benoit Jacob
2a86f052a5 - optimized determinant calculations for small matrices (size <= 4)
(only 30 muls for size 4)
- rework the matrix inversion: now using cofactor technique for size<=3,
  so the ugly unrolling is only used for size 4 anymore, and even there
  I'm looking to get rid of it.
2008-04-14 17:07:12 +00:00