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890 Commits

Author SHA1 Message Date
Benoit Steiner
4c70b0a762 Added support for patch extraction 2014-10-13 10:04:04 -07:00
Benoit Steiner
0219f8aed4 Added ability to print a tensor using an iostream. 2014-10-10 16:17:26 -07:00
Benoit Steiner
2ed1838aeb Added support for tensor chips 2014-10-10 16:11:27 -07:00
Benoit Steiner
4b36c3591f Fixed the tensor shuffling test 2014-10-10 15:43:21 -07:00
Benoit Steiner
a991f94c0e Fixed the thread pool test 2014-10-10 15:20:37 -07:00
Benoit Steiner
498b7eed25 Rewrote the TensorBase::random method to support the generation of random number on gpu. 2014-10-09 15:39:13 -07:00
Benoit Steiner
767424af18 Improved the functors defined for standard reductions 
Added a functor to encapsulate the generation of random numbers on cpu and gpu.
 2014-10-09 15:36:23 -07:00
Gael Guennebaud
ccd70ba123 Various numerical fixes in D&C SVD: I cannot make it fail with double, but still need to tune for single precision, and carefully test with duplicated singular values 2014-10-09 23:29:01 +02:00
Benoit Steiner
44beee9d68 Removed dead code 2014-10-08 14:14:20 -07:00
Benoit Steiner
0a07ac574e Added support for the *= and /* operators to TensorBase 2014-10-08 13:32:41 -07:00
Benoit Steiner
6c047d398d Fixed a comment 2014-10-08 13:29:36 -07:00
Gael Guennebaud
118b1113d9 Workaround MSVC issue. 2014-10-07 09:53:39 +02:00
Gael Guennebaud
503c176d8e Fix missing outer() member in DynamicSparseMatrix 2014-10-07 09:53:27 +02:00
Gael Guennebaud
dbdd8b0883 D&C SVD: add scaling to avoid overflow, fix handling of fixed size matrices 2014-10-06 19:35:57 +02:00
Benoit Steiner
af2e5995e2 Improved support for CUDA devices. 
Improved contractions on GPU
 2014-10-03 19:18:07 -07:00
Benoit Steiner
1269392822 Created the IndexPair type to store pair of tensor indices. CUDA doesn't support std::pair so we can't use them when targeting GPUs. 
Improved the performance on tensor contractions
 2014-10-03 10:16:59 -07:00
Benoit Steiner
8b2afe33a1 Fixes for the forced evaluation of tensor expressions 
More tests
 2014-10-02 10:39:36 -07:00
Benoit Steiner
7caaf6453b Added support for tensor reductions and concatenations 2014-10-01 20:38:22 -07:00
Benoit Steiner
1c236f4c9a Added tests for tensors of const values and tensors of stringswwq:: 2014-10-01 20:21:42 -07:00
Christoph Hertzberg
6d26deb894 Missing outerStride in AlignedVector3 resulted in infinite recursion 2014-09-30 16:43:19 +02:00
Gael Guennebaud
842e31cf5c Let KroneckerProduct exploits the recently introduced generic InnerIterator class. 2014-09-29 13:37:49 +02:00
Georg Drenkhahn
8a502233d8 Correcting the ReturnType in traits<KroneckerProduct<>> to include the correct Index type. 
Fixed mixup of types Rhs::Index and Lhs:Index in various loop variables.
Added explicit type conversion for arithmetic expressions which may return a wider type.
 2014-09-21 23:19:29 +02:00
Georg Drenkhahn
3bd31e21b5 Fixed compiler warning on implicit integer conversion by separating index type for matrix and permutation matrix which may not be equal. 2014-09-20 15:00:36 +02:00
Gael Guennebaud
abba11bdcf Many improvements in Divide&Conquer SVD: 
- Fix many numerical issues, in particular regarding deflation.
- Add heavy debugging output to help track numerical issues (there are still fews)
- Make use of Eiegn's apply-inplane-rotation feature.
 2014-09-22 15:22:52 +02:00
Gael Guennebaud
e70506dd8f Fix inner-stride of AlignedVector3 2014-09-18 22:46:46 +02:00
Gael Guennebaud
2ae20d558b Update KroneckerProduct wrt evaluator changes 2014-09-18 22:08:49 +02:00
Gael Guennebaud
62bce6e5e6 Make MatrixFunction use nested_eval instead of nested 2014-09-18 17:31:17 +02:00
Gael Guennebaud
060e835ee9 Add evaluator for the experimental AlignedVector3 2014-09-18 17:30:21 +02:00
Gael Guennebaud
0ca43f7e9a Remove deprecated code not used by evaluators 2014-09-18 15:15:27 +02:00
Benoit Steiner
10a79ca3a3 Merged latest updates from the Eigen trunk. 2014-09-15 09:18:16 -07:00
Gael Guennebaud
749b56f6af merge with default branch 2014-09-14 17:34:54 +02:00
Benoit Steiner
efdff15749 Fixed a typo in the contraction code 2014-09-06 13:28:24 -07:00
Gael Guennebaud
dacd39ea76 Exploit sparse structure in naiveU and naiveV when updating them. 2014-09-05 17:51:46 +02:00
Benoit Steiner
74db22455a Misc fixes. 2014-09-05 07:47:43 -07:00
Benoit Steiner
d43f737b4a Added support for evaluation of tensor shuffling operations as lvalues 2014-09-04 20:02:28 -07:00
Benoit Steiner
f50548e86a Added missing tensor copy constructors. As a result it is now possible to declare and initialize a tensor on the same line, as in: 
Tensor<bla> T = A + B;  or
  Tensor<bla> T(A.reshape(new_shape));
 2014-09-04 19:50:27 -07:00
Gael Guennebaud
15bad3670b Apply Householder U and V in-place. 2014-09-04 09:17:01 +02:00
Benoit Steiner
b24fe22b1a Improved the performance of the tensor convolution code by a factor of about 4. 2014-09-03 11:38:13 -07:00
Gael Guennebaud
c82dc227f1 Cleaning in BDCSVD (formating, handling of transpose case, remove some for loops) 2014-09-03 10:15:24 +02:00
Gael Guennebaud
a96f3d629c Clean bdcsvd 2014-09-02 22:30:23 +02:00
Gael Guennebaud
b3a0365429 merge with default branch 2014-09-01 18:21:01 +02:00
Gael Guennebaud
eb39296028 Reafctoring in D&C SVD unsupported module: clean and merge the SVDBase class to Eigen/SVD, rm copy/pasted JacobiSVD.h file 2014-09-01 18:16:20 +02:00
Gael Guennebaud
8754341848 Fix remaining garbage during a merge. 2014-09-01 17:25:13 +02:00
Gael Guennebaud
daad9585a3 Fix Kronecker product in legacy mode. 2014-09-01 17:24:07 +02:00
Gael Guennebaud
b051bbd64f Make unsupport sparse solvers use SparseSolverBase 2014-09-01 17:21:47 +02:00
Gael Guennebaud
b3d63b4db2 Add evaluator for DynamicSparseMatrix 2014-09-01 17:21:05 +02:00
Gael Guennebaud
124d12a915 merge default branch 2014-08-29 15:20:31 +02:00
Freddie Witherden
c3e4080474 Allow LevenbergMarquardt to work with non-standard types. 2014-08-27 15:24:51 +01:00
Benoit Steiner
2959045f2f Optimized the tensor padding code. 2014-08-26 09:47:18 -07:00
Benoit Steiner
36fffe48f7 Misc api improvements and cleanups 2014-08-23 14:35:41 -07:00
Benoit Steiner
fb5c1e9097 Optimized and cleaned up the tensor morphing code 2014-08-23 13:18:30 -07:00
Benoit Steiner
3d298da269 Added support for broadcasting 2014-08-20 17:00:50 -07:00
Benoit Steiner
9ac3c821ea Improved the speed of convolutions when running on cuda devices 2014-08-19 16:57:10 -07:00
Benoit Steiner
33c702c79f Added support for fast integer divisions by a constant 
Sped up tensor slicing by a factor of 3 by using these fast integer divisions.
 2014-08-14 22:13:21 -07:00
Benoit Steiner
eeb43f9e2b Added support for padding, stridding, and shuffling 2014-08-14 00:22:47 -07:00
Benoit Steiner
16047c8d4a Pulled in the latest changes from the Eigen trunk 2014-08-13 22:25:29 -07:00
Benoit Steiner
916ef48846 Added ability to get the nth element from an abstract array type. 2014-08-13 08:44:47 -07:00
Benoit Steiner
f1d8c13dbc Fixed misc typos. 2014-08-13 08:40:26 -07:00
Benoit Steiner
9faad2932f Added missing apis. 2014-08-13 08:36:33 -07:00
Benoit Steiner
f8fad09301 Updated the convolution and contraction evaluators to follow the new EvalSubExprsIfNeeded apu. 2014-08-13 08:33:18 -07:00
Benoit Steiner
72e7529708 Fixed a typo. 2014-08-13 08:29:40 -07:00
Benoit Steiner
1aa2bf8274 Support for in place evaluation of expressions containing slicing and reshaping operations 2014-08-13 08:27:58 -07:00
Benoit Steiner
b1892ab14d Added suppor for in place evaluation to simple tensor expressions. 
Use mempy to speedup tensor copies whenever possible.
 2014-08-13 08:26:44 -07:00
Benoit Steiner
439feca139 Reworked the TensorExecutor code to support in place evaluation. 2014-08-13 08:22:05 -07:00
Jitse Niesen
abb33258ce Doc: difference between array and matrix cosine etc (bug #830) 2014-09-06 14:59:44 +01:00
Gael Guennebaud
280661e67d Remove LM::sqrt_() member function in favor of a shortcut for sqrt(epsilon()) 2014-09-02 17:29:06 +02:00
Kolja Brix
953ec08089 Correct GMRES: 
* Fix error in calculation of residual at restart.
* Use relative residual as stopping criterion.
* Improve documentation.
 2014-08-02 18:39:15 +02:00
Benoit Steiner
647622281e The tensor assignment code now resizes the destination tensor as needed. 2014-07-31 17:39:04 -07:00
Gael Guennebaud
d79516660c Make loadMarket use the sparse-matrix index type, thus enabling loading huge matrices. 2014-07-31 16:43:19 +02:00
Benoit Steiner
2116e261fb Made sure that the data stored in fixed sized tensor is aligned. 2014-07-25 09:47:59 -07:00
Jitse Niesen
5f3d542b8a Fix typo in MatrixExponential noticed by Markos. 2014-07-25 13:34:03 +01:00
Benoit Steiner
f7bb7ee3f3 Fixed the assignment operator of the Tensor and TensorMap classes. 2014-07-22 10:31:21 -07:00
Gael Guennebaud
36e6c9064f bug #770: fix out of bounds access 2014-07-18 14:19:18 +02:00
Gael Guennebaud
5e72151ca5 bug #842: warn user about MPFR++ being under the GPL 2014-07-17 12:06:20 +02:00
Gael Guennebaud
84ad8ce7e3 Fix bug #770: workaround thread safety in mpreal 2014-07-17 12:00:56 +02:00
Gael Guennebaud
424c3ad266 bug #842: fix specialized product for mpreal 2014-07-17 09:41:33 +02:00
Hauke Heibel
5f1eedd655 Merged in complexzeros/eigen (pull request PR-69) 
Added Spline interpolation with derivatives.
 2014-07-11 12:03:10 +02:00
Benoit Steiner
40bb98e76a Added primitives to compare tensor dimensions 2014-07-10 11:29:51 -07:00
Benoit Steiner
ffd3654f67 Vectorized the evaluation of expressions involving tensor slices. 2014-07-10 11:09:46 -07:00
Jeff
b1169ce40c Fixed index that would cause crash with two point, two derivative interpolation. Added static_cast. 2014-07-10 12:03:42 -06:00
Kolja Brix
e955725ff1 Fix GMRES: Initialize essential Householder vector with correct dimension. Add check if initial guess is already a sufficient approximation. 2014-07-10 08:20:55 +02:00
Benoit Steiner
25b2f6624d Improved the speed of slicing operations. 2014-07-09 12:48:34 -07:00
Benoit Steiner
ea0906dfd8 Improved evaluation of tensor expressions when used as rvalues 2014-07-08 16:43:28 -07:00
Benoit Steiner
cc1bacea5b Improved the efficiency of the tensor evaluation code on thread pools and gpus. 2014-07-08 16:39:28 -07:00
Benoit Steiner
c285fda7f4 Extended the functionality of the TensorDeviceType classes 2014-07-08 16:30:48 -07:00
Gael Guennebaud
904509fbb6 Move using std::abs from Eigen's namespace to function scope. 2014-07-08 10:28:09 +02:00
Benoit Steiner
7d53633e05 Added support for tensor slicing 2014-07-07 14:10:36 -07:00
Benoit Steiner
bc072c5cba Added support for tensor slicing 2014-07-07 14:08:45 -07:00
Benoit Steiner
47981c5925 Added support for tensor slicing 2014-07-07 14:07:57 -07:00
Christoph Hertzberg
ef4a86d6b8 Fix trivial warnings in MPRealSupport 2014-07-18 16:39:58 +02:00
Gael Guennebaud
ac1bb3e5b3 bug #770: fix out of bounds access 2014-07-18 14:22:33 +02:00
Chen-Pang He
7a915f6846 Move Doxygen-only stuff to *.dox 2014-07-05 22:41:58 +08:00
Chen-Pang He
1a817d3b70 Document internal namespace 2014-07-05 21:50:05 +08:00
Chen-Pang He
8ee38d2db6 Fix dox for namespaces 2014-07-05 21:48:48 +08:00
Christoph Hertzberg
324e7e8fc9 Removed the deprecated EIGEN2_SUPPORT, as previously announced. A compilation error is raised, if this compile-switch is defined. The documentation references to the corresponding pages from Eigen3.2 now. Also, the Eigen2 testsuite has been removed. 2014-07-01 16:58:11 +02:00
Jeff
08c615f1e4 IndexArray is now a typename. 
Changed interpolate with derivatives test to use VERIFY_IS_APPROX.
 2014-06-25 19:02:57 -06:00
Jeff
f9496d341f Merged. 2014-06-23 20:24:31 -06:00
Jeff
e745a450de Removed tabs and fixed indentation. 2014-06-23 20:18:16 -06:00
Jeff
e86adc87e9 Fixed type mixing issues. 2014-06-23 19:52:42 -06:00
Jeff
b59f045c07 Using LU decomposition with complete pivoting for better accuracy. 2014-06-23 19:04:52 -06:00
Jeff
957c2c291b Changed uint to unsigned int. 2014-06-23 08:34:11 -06:00
Jeff
5dbbe6b400 Added Spline interpolation with derivatives. 2014-06-20 22:12:45 -06:00
Benoit Steiner
f80c8e17eb Silenced a compilation warning 2014-06-13 10:12:12 -07:00
Benoit Steiner
38ab7e6ed0 Reworked the expression evaluation mechanism in order to make it possible to efficiently compute convolutions and contractions in the future: 
* The scheduling of computation is moved out the the assignment code and into a new TensorExecutor class
 * The assignment itself is now a regular node on the expression tree
 * The expression evaluators start by recursively evaluating all their subexpressions if needed
 2014-06-13 09:56:51 -07:00
Benoit Steiner
aa664eabb9 Fixed a few compilation errors. 2014-06-10 10:31:29 -07:00
Benoit Steiner
4304c73542 Pulled latest updates from the Eigen main trunk. 2014-06-10 10:23:32 -07:00
Benoit Steiner
925fb6b937 TensorEval are now typed on the device: this will make it possible to use partial template specialization to optimize the strategy of each evaluator for each device type. 
Started work on partial evaluations.
 2014-06-10 09:14:44 -07:00
Benoit Steiner
a77458a8ff Fixes compilation errors triggered when compiling the tensor contraction code with cxx11 enabled. 2014-06-09 10:06:57 -07:00
Benoit Steiner
a669052f12 Improved support for rvalues in tensor expressions. 2014-06-09 09:45:30 -07:00
Benoit Steiner
36a2b2e9dc Prevent the generation of unlaunchable cuda kernels when compiling in debug mode. 2014-06-09 09:43:51 -07:00
Benoit Steiner
2859a31ac8 Fixed compilation error 2014-06-09 09:42:34 -07:00
Benoit Steiner
a961d72e65 Added support for convolution and reshaping of tensors. 2014-06-06 16:25:16 -07:00
Christian Seiler
96cb58fa3b unsupported/TensorSymmetry: factor out completely from Tensor module 
Remove the symCoeff() method of the the Tensor module and move the
functionality into a new operator() of the symmetry classes. This makes
the Tensor module now completely self-contained without symmetry
support (even though previously it was only a forward declaration and a
otherwise harmless trivial templated method) and also removes the
inconsistency with the rest of eigen w.r.t. the method's naming scheme.
 2014-06-04 20:44:22 +02:00
Christian Seiler
ea99433523 unsupported/TensorSymmetry: make symgroup construction autodetect number of indices 
When constructing a symmetry group, make the code automatically detect
the number of indices required from the indices of the group's
generators. Also, allow the symmetry group to be applied to lists of
indices that are larger than the number of indices of the symmetry
group.

Before:
SGroup<4, Symmetry<0, 1>, Symmetry<2,3>> group;
group.apply<SomeOp, int>(std::array<int,4>{{0, 1, 2, 3}}, 0);

After:
SGroup<Symmetry<0, 1>, Symmetry<2,3>> group;
group.apply<SomeOp, int>(std::array<int,4>{{0, 1, 2, 3}}, 0);
group.apply<SomeOp, int>(std::array<int,5>{{0, 1, 2, 3, 4}}, 0);

This should make the symmetry group easier to use - especially if one
wants to reuse the same symmetry group for different tensors of maybe
different rank.

static/runtime asserts remain for the case where the length of the
index list to which a symmetry group is to be applied is too small.
 2014-06-04 20:27:42 +02:00
Christian Seiler
cee62018fc unsupported/CXX11/Core: allow gen_numeric_list to have a starting point 
Add a template parameter to gen_numeric_list that acts as a starting
point for the list, i.e. gen_numeric_list<int, 5, 4> will generate a
numeric_list<int, 4, 5, 6, 7, 8>.
 2014-06-04 19:54:22 +02:00
Christian Seiler
58cfac9a12 unsupported/ C++11 workarounds: don't use hack for libc++ if not required 
libc++ from 3.4 onwards supports constexpr std::get, but only if
compiled with -std=c++1y. Change the detection so that libc++'s
internals are only used if either -std=c++1y is not specified or the
library is too old, making the whole hack a bit more future-proof.
 2014-06-04 18:47:42 +02:00
Christian Seiler
45515779d3 Fix compilation for CXX11/Tensor module if unsupported is not in include path 2014-06-04 18:31:02 +02:00
Benoit Steiner
6fa6cdd2b9 Added support for tensor contractions 
Updated expression evaluation mechanism to also compute the size of the tensor result
Misc fixes and improvements.
 2014-06-04 09:21:48 -07:00
Benoit Steiner
736267cf6b Added support for additional tensor operations: 
* comparison (<, <=, ==, !=, ...)
  * selection
  * nullary ops such as random or constant generation
  * misc unary ops such as log(), exp(), or a user defined unaryExpr()
Cleaned up the code a little.
 2014-05-22 16:22:35 -07:00
Benoit Steiner
7402fea0a8 Vectorized the evaluation of tensor expression (using SSE, AVX, NEON, ...) 
Added the ability to parallelize the evaluation of a tensor expression over multiple cpu cores.
Added the ability to offload the evaluation of a tensor expression to a GPU.
 2014-05-16 15:08:05 -07:00
Benjamin Chrétien
c55c5763fe PolynomialSolver: fix typo. 2014-05-19 19:24:02 +02:00
Benjamin Chrétien
eda79321be PolynomialSolver: fix bugs related to linear polynomials. 2014-05-19 19:08:51 +02:00
Benjamin Chrétien
df92649379 PolynomialSolver: add missing constructors. 2014-05-19 18:40:29 +02:00
Benoit Steiner
0320f7e3a7 Added support for fixed sized tensors. 
Improved support for tensor expressions.
 2014-05-06 11:18:37 -07:00
Benoit Steiner
c0f2cb016e Extended support for Tensors: 
* Added ability to map a region of the memory to a tensor
  * Added basic support for unary and binary coefficient wise expressions, such as addition or square root
  * Provided an emulation layer to make it possible to compile the code with compilers (such as nvcc) that don't support cxx11.
 2014-04-28 10:32:27 -07:00
Gael Guennebaud
20c840be15 Merged in benoitsteiner/eigen-fixes/nvcc_fixes (pull request PR-56) 
Fixed a typo in CXX11Meta.h
 2014-04-15 10:38:25 +02:00
Benoit Steiner
1afd50e0f3 Fixed a typo in CXX11Meta.h 2014-04-14 14:26:30 -07:00
Freddie Witherden
91288e9bf9 Add include LevenbergMarquardt in CMakeLists.txt. 
This fixes bug #768.
 2014-04-12 12:53:09 +01:00
Gael Guennebaud
1221dd90aa Fix no newline at end of file warning 2014-04-01 11:21:14 +02:00
giacomo po
3e42b775ea MINRES, bug #715: add support for zero rhs, and remove square test. 2014-03-17 16:33:52 -07:00
Bo Li
4fe56a0e02 fix Spline constructor 2014-03-15 08:42:20 +08:00
Gael Guennebaud
bd6eca059d Fix compilation of SPlines module 2014-02-17 10:00:38 +01:00
Gael Guennebaud
3283d98d13 optimize sparse-sparse Kronecker product 2014-02-14 14:46:01 +01:00
Hauke Heibel
e722f36ffa Fixed issue #734 (thanks to Philipp Büttgenbach for reporting the issue and proposing a fix). 
Kept ColMajor layout if possible in order to keep derivatives of the same order adjacent in memory.
 2014-02-01 20:49:48 +01:00
Christoph Hertzberg
febfc7b9b4 Fix bug #730: Path of OpenGL headers is different on MacOS 2014-01-29 22:05:39 +01:00
Anton Gladky
4cd4be97a7 Port unsupported constrained CG to Eigen3 2014-01-15 17:49:52 +01:00
Christian Seiler
f6bac196d5 C++11/Tensor: Fix copyright headers 2013-11-16 00:03:23 +01:00
Christian Seiler
03a956925a CXX11/TensorSymmetry: add symmetry support for Tensor class 
Add a symCoeff() method to the Tensor class template that allows the
user of the class to set multiple elements of a tensor at once if they
are connected by a symmetry operation with respect to the tensor's
indices (symmetry/antisymmetry/hermiticity/antihermiticity under
echange of two indices and combination thereof for different pairs of
indices).

A compile-time resolution of the required symmetry groups via meta
templates is also implemented. For small enough groups this is used to
unroll the loop that goes through all the elements of the Tensor that
are connected by this group. For larger groups or groups where the
symmetries are defined at run time, a standard run-time implementation
of the same algorithm is provided.

For example, the following code completely initializes all elements of
the totally antisymmetric tensor in three dimensions ('epsilon
tensor'):

SGroup<3, AntiSymmetry<0,1>, AntiSymmetry<1,2>> sym;
Eigen::Tensor<double, 3> epsilon(3,3,3);
epsilon.setZero();
epsilon.symCoeff(sym, 0, 1, 2) =  1;
 2013-11-14 23:35:11 +01:00
Christian Seiler
f97b3cd024 CXX11/Tensor: add simple initial tensor implementation 
This commit adds an initial implementation of a class template Tensor
that allows for the storage of objects with more than two indices.
Currently, only storing data and setting the object to zero for POD
data types are implemented.
 2013-11-14 22:52:37 +01:00
Christian Seiler
5e28c41549 C++11: add template metaprogramming helpers 
Create a new directory CXX11 under unsupported/Eigen that contains code
that requires C++11. In that directory, add a few generic templates
useful for any module relying on C++11. These templates may be included
with #include <[unsupported/]Eigen/CXX11/Core>. At the moment, this
will only provide templates in the Eigen::internal namespace.
 2013-11-14 22:27:06 +01:00
Christoph Hertzberg
ae83f5ede9 Fixed bug #702 and added unit test. 
Thanks to Alexander Werner for the report.
 2013-11-07 18:32:24 +01:00
Desire NUENTSA
4bb1c48f25 Add a block sparse matrix class. tests to be added 2013-09-20 18:54:17 +02:00
Jitse Niesen
16cbd3d72d BDCSVD: Use rational interpolation to solve secular equation. 
Algorithm is rather ad-hoc and falls back on bisection if required.
 2013-08-27 15:30:11 +01:00
Hauke Heibel
86daf2f75c Added missing inline statements in order to prevent linker errors. 2013-08-27 15:41:18 +02:00
Jitse Niesen
d1c48f1606 BDCSVD: Use HouseholderSeq directly. 2013-08-21 14:34:48 +01:00
Jitse Niesen
403be74861 BDCSVD: Compute SVD of combined problem directly. 
First step at implementing final stage in BDCSVD algorithm.
Uses bisection method to solve nonlinear equation.
Still lots of room for optimization.
 2013-08-20 14:10:55 +01:00
Gael Guennebaud
916d29e58f Backout parts of changeset 6719e56b5b 
(these changes were not intended to be commited)
 2013-08-11 19:26:41 +02:00
Gael Guennebaud
6719e56b5b Ref<> objects must be nested by reference because they potentially store a temporary object 2013-08-11 17:52:43 +02:00
Jitse Niesen
306ce33e1c BDCSVD: Streamline compute() and copyUV() 2013-08-07 16:34:34 +01:00
Hauke Heibel
8f4d93a4b7 Fix compilation. 
The Matrix is required to be mutable but it also needs to be a reference and
temporaries do not bind to non-const references - thus we need a hack and
cast away the constness.
 2013-08-02 22:40:36 +02:00