devtools/eigen
1
0
Fork 0
mirror of https://gitlab.com/libeigen/eigen.git synced 2026-04-10 11:34:33 +08:00
Code Issues Packages Projects Releases Wiki Activity
3,154 Commits 15 Branches 93 Tags
72d4d4513330e4d9ffcdeddfcf94103d560a7da6
Commit Graph

56 Commits

Author SHA1 Message Date
Hauke Heibel
316dadc8e4 Fixed some SVD issues. 
Make the SVD's output unitary.
Improved unit tests.
Added an assert to the SVD ctor to check whether rows>=cols.
 2010-09-24 17:32:44 +02:00
Hauke Heibel
053261de88 Make the SVD's output unitary and improved unit tests. 2010-09-24 16:28:20 +02:00
Benoit Jacob
c253cc3d53 SVD: 
* fix unit test for rectangular matrices.
 * enforce that rows >= cols since various places in the code assume that.
 2010-09-23 09:51:08 -04:00
Hauke Heibel
62bf04b339 Fixed bad memory access in the SVD. 2010-09-23 11:15:36 +02:00
Benoit Jacob
e5de9e5226 Remove \nonstable yet. The stability rules for Eigen3 are much simpler: 
- all what's not in unsupported/ is considered stable API
    (except internal stuff e.g. expression templates).
 2010-06-29 10:10:47 -04:00
Gael Guennebaud
28e64b0da3 email change 2010-06-24 23:21:58 +02:00
Benoit Jacob
d788627b54 rename: 
EIGEN_SIZE_MIN    ---> EIGEN_SIZE_MIN_PREFER_DYNAMIC
  EIGEN_MAXSIZE_MIN ---> EIGEN_SIZE_MIN_PREFER_FIXED
and make sure to use the latter in products xprs to determine the inner size.
 2010-06-14 09:05:08 -04:00
Benoit Jacob
aaaade4b3d the Index types change. 
As discussed on the list (too long to explain here).
 2010-05-30 16:00:58 -04:00
Adolfo Rodriguez Tsouroukdissian
28dde19e40 - Added problem size constructor to decompositions that did not have one. It preallocates member data structures. 
- Updated unit tests to check above constructor.
- In the compute() method of decompositions: Made temporary matrices/vectors class members to avoid heap allocations during compute() (when dynamic matrices are used, of course).

These  changes can speed up decomposition computation time when a solver instance is used to solve multiple same-sized problems. An added benefit is that the compute() method can now be invoked in contexts were heap allocations are forbidden, such as in real-time control loops.

CAVEAT: Not all of the decompositions in the Eigenvalues module have a heap-allocation-free compute() method. A future patch may address this issue, but some required API changes need to be incorporated first.
 2010-04-21 17:15:57 +02:00
Benoit Jacob
547269da35 fix the flags and matrix options, to always have the right RowMajor bit in the vector case 2010-03-19 02:12:23 -04:00
Adolfo Rodriguez Tsouroukdissian
5a36f4a8d1 Propagate all five matrix template parameters to members and temporaries of decomposition classes. One particular advantage of this is that decomposing matrices with max sizes known at compile time will not allocate. 
NOTE: The ComplexEigenSolver class currently _does_ allocate (line 135 of Eigenvalues/ComplexEigenSolver.h), but the reason appears to be in the implementation of matrix-matrix products, and not in the decomposition itself.
The nomalloc unit test has been extended to verify that decompositions do not allocate when max sizes are specified. There are currently two workarounds to prevent the test from failing (see comments in test/nomalloc.cpp), both of which are related to matrix products that allocate on the stack.
 2010-03-08 19:31:27 +01:00
Hauke Heibel
abc8c01080 Renamed PlainMatrixType to PlainObject (Array != Matrix). 
Renamed ReturnByValue::ReturnMatrixType ReturnByValue::ReturnType (again, Array != Matrix).
 2010-02-20 15:53:57 +01:00
Gael Guennebaud
fe0827495a * move dummy_precision and epsilon to NumTraits 
* make NumTraits inherits std::numeric_limits
 2010-02-10 10:52:28 +01:00
Benoit Jacob
828d058b4b EIGEN_ENUM_MIN ---> EIGEN_SIZE_MIN 2010-01-27 11:42:04 -05:00
Gael Guennebaud
9d9e00b608 merge and add start/end to Eigen2Support 2010-01-05 13:07:32 +01:00
Benoit Jacob
39ac57fa6d Big renaming: 
start ---> head
  end   ---> tail
Much frustration with sed syntax. Need to learn perl some day.
 2010-01-04 21:24:43 -05:00
Gael Guennebaud
eaaba30cac merge with default branch 2009-12-22 22:51:08 +01:00
Hauke Heibel
832045d363 Warning 4512 (assignment operators could not be generated) is now simply disabled. 
All unimplemented assignment operators have been removed.
 2009-12-14 10:32:43 +01:00
Hauke Heibel
d088ee35f6 Added to possibility to compile unit tests at maximum warning level. 
Silenced (amongst others) many conversion related warnings.
 2009-12-12 11:39:07 +01:00
Gael Guennebaud
8e05f9cfa1 add a DenseBase class for MAtrixBase and ArrayBase and more code factorisation 2009-12-04 23:17:14 +01:00
Benoit Jacob
4b1aca2288 precision ---> dummy_precision 2009-11-26 22:05:02 -05:00
Benoit Jacob
92749eed11 * merge 
* remove a ctor in QuaternionBase as it gives a strange error with GCC 4.4.2.
 2009-11-09 09:08:03 -05:00
Benoit Jacob
9a0900e33e last round of changes, mainly to return derived types instead of base types, and fix various compilation issues 2009-11-09 07:51:31 -05:00
Benoit Jacob
e4e58e8337 simplifications in the ei_solve_impl system, factor out some boilerplate code 2009-11-08 16:51:41 -05:00
Benoit Jacob
ba7bfe110c port the qr module to ei_solve_xxx. 2009-11-08 10:21:26 -05:00
Benoit Jacob
68210b03c1 port svd to the ei_xxx_return_value thing 
this commit made in caltrain from Palo Alto to SF
 2009-11-04 21:00:12 -05:00
Benoit Jacob
4c456d4211 fix bug in svd solve reported on forum, was apparently assuming square matrix, not sure how the unit test could work. 2009-11-04 11:46:17 -05:00
Benoit Jacob
f975b9bd3e SVD::solve() : port to new API and improvements 2009-10-30 08:51:33 -04:00
Gael Guennebaud
b83654b5d0 * rename JacobiRotation => PlanarRotation 
* move the makeJacobi and make_givens_* to PlanarRotation
* rename applyJacobi* => apply*
 2009-09-02 15:04:10 +02:00
Hauke Heibel
05ddd32849 added missing JacobiRotation's ... 2009-09-01 23:12:40 +02:00
Benoit Jacob
ee982709d3 in all decs, make the compute() methods return *this 
(implements feature request #18)
 2009-08-15 23:12:39 -04:00
Gael Guennebaud
f5f2b222a3 make SVD reuses applyJacobi 2009-08-16 00:02:36 +02:00
Benoit Jacob
03c1e79f35 svd: sort in decreasing order, remove unused code 2009-08-15 19:20:48 -04:00
Benoit Jacob
5f8d58f36a fix bug in sorting of singular values 2009-08-09 00:05:38 +02:00
Benoit Jacob
523cdedf58 make the dot product linear in the second variable, not the first variable 2009-08-03 17:20:45 +02:00
Gael Guennebaud
a012aecbc4 bugfix in SVD 2009-07-20 13:44:52 +02:00
Gael Guennebaud
629e083d81 slight change in the comparison to -1 2009-07-10 08:21:20 +02:00
Gael Guennebaud
f84bd3e7b1 include the fixes of the third edition 2009-07-06 15:01:30 +02:00
Gael Guennebaud
0c2232e5d9 quick reimplementation of SVD from the numeral recipes book: 
this is still not Eigen style code but at least it works for
n>m and it is more accurate than the JAMA based version. (I needed
it now, this is why I did that)
 2009-07-06 13:47:41 +02:00
Gael Guennebaud
d457ec5810 fix #20: SVD::solve() now resize the result 2009-07-04 09:28:11 +02:00
Benoit Jacob
7667a93cbe merge 2009-05-22 20:31:26 +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
Thomas Capricelli
0ed7c2f6d7 fix typo 2009-05-22 19:46:29 +02:00
Hauke Heibel
5c5789cf0f QR and SVD decomposition interface unification. 
Added default ctor and public compute method as
well as safe-guards against uninitialized usage.
Added unit tests for the safe-guards.
 2009-05-22 14:27:58 +02:00
Benoit Jacob
291ee89684 add computeRotationScaling and computeScalingRotation in SVD 
add convenience functions in Transform
reimplement Transform::rotation() to use that
add unit-test
 2009-01-22 16:39:08 +00:00
Benoit Jacob
876b1fb842 add polar decomposition on both sides, in SVD, with test 2009-01-22 15:00:47 +00:00
Gael Guennebaud
94efa16187 more Scalar conversions fixes 2009-01-07 10:22:46 +00:00
Kenneth Frank Riddile
6736e52d25 * suppressed some minor warnings 2009-01-06 04:38:00 +00:00
Benoit Jacob
fabaa6915b * fix in IO.h, a useless copy was made because of assignment from 
Derived to MatrixBase.
* the optimization of eval() for Matrix now consists in a partial
  specialization of ei_eval, which returns a reference type for Matrix.
  No overriding of eval() in Matrix anymore. Consequence: careful,
  ei_eval is no longer guaranteed to give a plain matrix type!
  For that, use ei_plain_matrix_type, or the PlainMatrixType typedef.
* so lots of changes to adapt to that everywhere. Hope this doesn't
  break (too much) MSVC compilation.
* add code examples for the new image() stuff.
* lower a bit the precision for floats in the unit tests as
  we were already doing some workarounds in inverse.cpp and we got some
  failed tests.
 2008-12-18 20:36:25 +00:00
Benoit Jacob
89f468671d * replace postfix ++ by prefix ++ wherever that makes sense in Eigen/ 
* fix some "unused variable" warnings in the tests; there remains a libstdc++ "deprecated"
warning which I haven't looked much into
 2008-12-17 14:30:01 +00:00