[4ede1e]: itpp / base / algebra / inv.h  Maximize  Restore  History

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  1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 /*! * \file * \brief Definitions of matrix inversion routines * \author Tony Ottosson * * ------------------------------------------------------------------------- * * Copyright (C) 1995-2010 (see AUTHORS file for a list of contributors) * * This file is part of IT++ - a C++ library of mathematical, signal * processing, speech processing, and communications classes and functions. * * IT++ 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 3 of the License, or (at your option) any * later version. * * IT++ is distributed in the hope that it will be useful, but WITHOUT ANY * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more * details. * * You should have received a copy of the GNU General Public License along * with IT++. If not, see . * * ------------------------------------------------------------------------- */ #ifndef INV_H #define INV_H #include namespace itpp { /*! \brief Inverse of real square matrix. \ingroup inverse Calculate the inverse of the real matrix \f$\mathbf{X}\f$ Solves the equation system \f$\mathbf{Y} \mathbf{X} = \mathbf{I}\f$ using LU-factorization. IT++ needs to be compiled with the LAPACK for the inverse to be available. */ bool inv(const mat &X, mat &Y); /*! \brief Inverse of real square matrix. \ingroup inverse Calculate the inverse of the real matrix \f$\mathbf{X}\f$ Solves the equation system \f$\mathbf{Y} \mathbf{X} = \mathbf{I}\f$ using LU-factorization. IT++ needs to be compiled with LAPACK support for the inverse to be available. */ mat inv(const mat &X); /*! \brief Inverse of complex square matrix. \ingroup inverse Calculate the inverse of the complex matrix \f$\mathbf{X}\f$ Solves the equation system \f$\mathbf{Y} \mathbf{X} = \mathbf{I}\f$ using LU-factorization. IT++ needs to be compiled with LAPACK support for the inverse to be available. */ bool inv(const cmat &X, cmat &Y); /*! \brief Inverse of real square matrix. \ingroup inverse Calculate the inverse of the complex matrix \f$\mathbf{X}\f$ Solves the equation system \f$\mathbf{Y} \mathbf{X} = \mathbf{I}\f$ using LU-factorization. IT++ needs to be compiled with the LAPACK for the inverse to be available. */ cmat inv(const cmat &X); } // namespace itpp #endif // #ifndef INV_H