Eigen/Eigenvalues

// This file is part of Eigen, a lightweight C++ template library
// for linear algebra.
//
// This Source Code Form is subject to the terms of the Mozilla
// Public License v. 2.0. If a copy of the MPL was not distributed
// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.

#ifndef EIGEN_EIGENVALUES_MODULE_H
#define EIGEN_EIGENVALUES_MODULE_H

#include "Core"

#include "Cholesky"
#include "LU"
#include "Geometry"
#include "Sparse"  // Needed by ComplexQZ.

#include "src/Core/util/DisableStupidWarnings.h"

/** \defgroup Eigenvalues_Module Eigenvalues module
 *
 * This module mainly provides various eigenvalue solvers.
 * This module also provides some MatrixBase methods, including:
 *  - MatrixBase::eigenvalues(),
 *  - MatrixBase::operatorNorm()
 *
 * \code
 * #include <Eigen/Eigenvalues>
 * \endcode
 */

// IWYU pragma: begin_exports
#include "src/Eigenvalues/Tridiagonalization.h"
#include "src/Eigenvalues/RealSchur.h"
#include "src/Eigenvalues/EigenSolver.h"
#include "src/Eigenvalues/SelfAdjointEigenSolver.h"
#include "src/Eigenvalues/GeneralizedSelfAdjointEigenSolver.h"
#include "src/Eigenvalues/HessenbergDecomposition.h"
#include "src/Eigenvalues/ComplexSchur.h"
#include "src/Eigenvalues/ComplexEigenSolver.h"
#include "src/Eigenvalues/RealQZ.h"
#include "src/Eigenvalues/ComplexQZ.h"
#include "src/Eigenvalues/GeneralizedEigenSolver.h"
#include "src/Eigenvalues/MatrixBaseEigenvalues.h"
#ifdef EIGEN_USE_LAPACKE
#ifdef EIGEN_USE_MKL
#include "mkl_lapacke.h"
#elif defined(EIGEN_LAPACKE_SYSTEM)
#include <lapacke.h>
#else
#include "src/misc/lapacke.h"
#endif
#include "src/Eigenvalues/RealSchur_LAPACKE.h"
#include "src/Eigenvalues/ComplexSchur_LAPACKE.h"
#include "src/Eigenvalues/SelfAdjointEigenSolver_LAPACKE.h"
#endif
// IWYU pragma: end_exports

#include "src/Core/util/ReenableStupidWarnings.h"

#endif  // EIGEN_EIGENVALUES_MODULE_H
Add missing licence header to some top header files 2015-10-26 11:46:05 +01:00			`// This file is part of Eigen, a lightweight C++ template library`
			`// for linear algebra.`
			`//`
			`// This Source Code Form is subject to the terms of the Mozilla`
			`// Public License v. 2.0. If a copy of the MPL was not distributed`
			`// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.`

rename the EigenSolver module to Eigenvalues 2009-09-04 09:23:38 +02:00			`#ifndef EIGEN_EIGENVALUES_MODULE_H`
			`#define EIGEN_EIGENVALUES_MODULE_H`

			`#include "Core"`

			`#include "Cholesky"`
fix #66 : upper triangular checks in ComplexSchur 2009-11-02 10:46:40 +01:00			`#include "LU"`
add a computeDirect method to SelfAdjointEigenSolver for fast eigen decomposition 2011-07-21 19:07:52 +02:00			`#include "Geometry"`
More ComplexQZ fixes. <!-- Thanks for contributing a merge request! We recommend that first-time contributors read our [contribution guidelines](https://eigen.tuxfamily.org/index.php?title=Contributing_to_Eigen). Before submitting the MR, please complete the following checks: - Create one PR per feature or bugfix, - Run the test suite to verify your changes. See our [test guidelines](https://eigen.tuxfamily.org/index.php?title=Tests). - Add tests to cover the bug addressed or any new feature. - Document new features. If it is a substantial change, add it to the [Changelog](https://gitlab.com/libeigen/eigen/-/blob/master/CHANGELOG.md). - Leave the following box checked when submitting: `Allow commits from members who can merge to the target branch`. This allows us to rebase and merge your change. Note that we are a team of volunteers; we appreciate your patience during the review process. --> ### Description <!--Please explain your changes.--> More ComplexQZ fixes. Extra semicolons are triggering some warnings and errors with `-Werror`. Moved the `Sparse` import up to the umbrella header to avoid IWYU exports. ### Reference issue <!-- You can link to a specific issue using the gitlab syntax #<issue number>. If the MR fixes an issue, write "Fixes #<issue number>" to have the issue automatically closed on merge. --> ### Additional information <!--Any additional information you think is important.--> See merge request libeigen/eigen!2036 2025-10-20 21:09:53 +00:00			`#include "Sparse" // Needed by ComplexQZ.`
rename the EigenSolver module to Eigenvalues 2009-09-04 09:23:38 +02:00
Old gcc versions have problems with recursive #pragma GCC diagnostic push/pop Workaround: Don't include "DisableStupidWarnings.h" before including other main-headers 2018-08-28 11:44:15 +02:00			`#include "src/Core/util/DisableStupidWarnings.h"`

rename the EigenSolver module to Eigenvalues 2009-09-04 09:23:38 +02:00			`/** \defgroup Eigenvalues_Module Eigenvalues module`
			`*`
			`* This module mainly provides various eigenvalue solvers.`
			`* This module also provides some MatrixBase methods, including:`
			`* - MatrixBase::eigenvalues(),`
			`* - MatrixBase::operatorNorm()`
			`*`
			`* \code`
			`* #include <Eigen/Eigenvalues>`
			`* \endcode`
			`*/`

Add IWYU export pragmas to top-level headers. 2023-02-08 17:40:31 +00:00			`// IWYU pragma: begin_exports`
rename the EigenSolver module to Eigenvalues 2009-09-04 09:23:38 +02:00			`#include "src/Eigenvalues/Tridiagonalization.h"`
Split computation of real Schur form in EigenSolver to its own class. This is done with the minimal amount of work, so the result is very rough. 2010-04-01 12:32:56 +01:00			`#include "src/Eigenvalues/RealSchur.h"`
rename the EigenSolver module to Eigenvalues 2009-09-04 09:23:38 +02:00			`#include "src/Eigenvalues/EigenSolver.h"`
			`#include "src/Eigenvalues/SelfAdjointEigenSolver.h"`
* decouple the generalized selfadjoint eigenvalue problem to the standard one * uses named values instead of bools 2010-06-16 23:48:16 +02:00			`#include "src/Eigenvalues/GeneralizedSelfAdjointEigenSolver.h"`
rename the EigenSolver module to Eigenvalues 2009-09-04 09:23:38 +02:00			`#include "src/Eigenvalues/HessenbergDecomposition.h"`
			`#include "src/Eigenvalues/ComplexSchur.h"`
			`#include "src/Eigenvalues/ComplexEigenSolver.h"`
Add a preliminary GeneralizedEigenSolver computing the eigenvalues of Av=lBv with A and B general real matrices. Currently only the eigenvalues are reported. 2012-07-26 20:15:17 +02:00			`#include "src/Eigenvalues/RealQZ.h"`
ComplexQZ 2025-10-13 17:35:03 +00:00			`#include "src/Eigenvalues/ComplexQZ.h"`
Add a preliminary GeneralizedEigenSolver computing the eigenvalues of Av=lBv with A and B general real matrices. Currently only the eigenvalues are reported. 2012-07-26 20:15:17 +02:00			`#include "src/Eigenvalues/GeneralizedEigenSolver.h"`
Update eigenvalues() and operatorNorm() methods in MatrixBase. * use SelfAdjointView instead of Eigen2's SelfAdjoint flag. * add tests and documentation. * allow eigenvalues() for non-selfadjoint matrices. * they no longer depend only on SelfAdjointEigenSolver, so move them to a separate file 2010-05-24 17:43:50 +01:00			`#include "src/Eigenvalues/MatrixBaseEigenvalues.h"`
add a "using MKL" documentation page, add a minimal documentation of PARDISO wrapper classes, refine a bit the EIGEN_USE_* logic 2011-12-09 16:52:37 +01:00			`#ifdef EIGEN_USE_LAPACKE`
use MKL's lapacke.h header when using MKL 2017-08-17 21:58:39 +02:00			`#ifdef EIGEN_USE_MKL`
			`#include "mkl_lapacke.h"`
Strip lapacke.h to only the declarations used by Eigen libeigen/eigen!2322 Closes #2851 2026-03-28 03:16:46 +00:00			`#elif defined(EIGEN_LAPACKE_SYSTEM)`
			`#include <lapacke.h>`
use MKL's lapacke.h header when using MKL 2017-08-17 21:58:39 +02:00			`#else`
Clean references to MKL in LAPACKe support. 2016-07-25 18:20:08 +02:00			`#include "src/misc/lapacke.h"`
use MKL's lapacke.h header when using MKL 2017-08-17 21:58:39 +02:00			`#endif`
Rename MKL files 2016-07-25 18:00:47 +02:00			`#include "src/Eigenvalues/RealSchur_LAPACKE.h"`
			`#include "src/Eigenvalues/ComplexSchur_LAPACKE.h"`
			`#include "src/Eigenvalues/SelfAdjointEigenSolver_LAPACKE.h"`
Intel(R) MKL support added. * * * License disclaimer changed to BSD license for MKL_support.h * * * Pardiso support fixed, test added. blas/lapack tests fixed: Scalar parameter was added in Cholesky, product_matrix_vector_triangular remaned to triangular_matrix_vector_product. * * * PARDISO test was added physically. 2011-12-05 14:52:21 +07:00			`#endif`
Add IWYU export pragmas to top-level headers. 2023-02-08 17:40:31 +00:00			`// IWYU pragma: end_exports`
rename the EigenSolver module to Eigenvalues 2009-09-04 09:23:38 +02:00
shut up stupid ICC warnings 2011-02-22 09:31:22 -05:00			`#include "src/Core/util/ReenableStupidWarnings.h"`
rename the EigenSolver module to Eigenvalues 2009-09-04 09:23:38 +02:00
			`#endif // EIGEN_EIGENVALUES_MODULE_H`