/usr/include/odindata/linalg.h is in libodin-dev 1.8.5-2ubuntu1.
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linalg.h - description
-------------------
begin : Sun May 22 2005
copyright : (C) 2001 by Thies Jochimsen
email : jochimse@cns.mpg.de
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#ifndef LINALG_H
#define LINALG_H
#include<odindata/complexdata.h>
/**
* @addtogroup odindata
* @{
*/
/**
* Solves the linear system A x = b and returns x.
* All singular values less than sv_truncation * max_singular_value
* will be set to zero.
* The algorithm uses the singular value decomposition from LAPACK (or from GSL if LAPACK is not available).
*
*/
Data<float,1> solve_linear(const Data<float,2>& A, const Data<float,1>& b, float sv_truncation=0.0);
/**
* Solves the complex linear system A x = b and returns x.
* All singular values less than sv_truncation * max_singular_value
* will be set to zero.
* The algorithm uses the singular value decomposition from LAPACK (or from GSL if LAPACK is not available).
*
*/
ComplexData<1> solve_linear(const ComplexData<2>& A, const ComplexData<1>& b, float sv_truncation=0.0);
/**
* Computes the eigenvalues of symmetric matrix A using LAPACK (or with GSL if LAPACK is not available).
*
*/
Data<float,1> eigenvalues(const Data<float,2>& A);
/** @}
*/
#endif
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