/usr/include/linbox/matrix/random-matrix.h is in liblinbox-dev 1.3.2-1.1.
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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 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 | /* Copyright (C) 2010 LinBox
* Written by Brice Boyer <brice.boyer@imag.fr>
*
*
*
* ========LICENCE========
* This file is part of the library LinBox.
*
* LinBox is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
* ========LICENCE========
*/
/** @file matrix/random-matrix.h
* @ingroup matrix
* @brief Implementation of random matrices.
*
* We provide function to create random matrices (dense, sparse, structured)
* on several rings. This header was first introduced to avoid code redundancy in tests/
* and make it easier to write tests/ examples/.
*
* @todo à la vector/stream.h
*/
#include "linbox/matrix/blas-matrix.h"
#include "linbox/randiter/random-integer.h"
#include "linbox/randiter/random-prime.h"
#include "linbox/matrix/permutation-matrix.h"
#include "linbox/algorithms/blas-domain.h"
#include "linbox/algorithms/cra-domain.h"
#include "linbox/algorithms/cra-full-multip-fixed.h"
namespace LinBox
{
// non dependant struct -> out of class.
struct RankBuildMethod {
RankBuildMethod() {}
} ;
struct _LU_ : public RankBuildMethod {
_LU_(){}
} ;
// LU_sparse_,
// LU_cra_,
struct _Rank_update_ : public RankBuildMethod {
_Rank_update_() {}
} ;
/// random method for constructing rank
struct RankBuilder {
// private :
// balancedLC_
// public:
typedef _LU_ LU_ ;
typedef _Rank_update_ Rank_update_ ;
RankBuilder(){}
};
/// Random Dense Matrix builder.
template<class Randiter, class Field>
class RandomDenseMatrix {
protected:
private :
Field F_ ; //!< The field containing the random entries. @todo is there a copy made ?
/*! How are entries generated ?
* @pre need only provide <code>elmt& random(elmt&);</code>
* @see \ref LinBox::RandIterArchetype
*/
Randiter R_ ;
// Matrix & A_ ; //!< The resulting random matrix
public :
/// constructor
RandomDenseMatrix(Field & F, Randiter & R) :
F_(F), R_(R)
{ }
RandomDenseMatrix(const Field & F, Randiter & R) :
F_(F), R_(R)
{ }
/// destructor
~RandomDenseMatrix() {}
/*! creates a randomly filled matrix.
* @param A matrix to be randomized.
*/
template<class Matrix>
Matrix & random(Matrix & A) ;
/*! provide a matrix with prescribed rank.
* Default method.
* @param A
* @param rank expected rank
* @warning No certificate yet.
*/
template<class Matrix>
Matrix & randomRank(Matrix & A, int rank);
/*! provide a matrix with prescribed rank.
* @param A
* @param rank expected rank
* @param meth how is the matrix generated ? see \ref RankBuilder.
* @warning No certificate yet.
*/
template<class Matrix>
Matrix & randomRank(Matrix & A, int rank
, const RankBuilder::LU_ & meth );
template<class Matrix>
Matrix & randomRank(Matrix & A, int rank
, const RankBuilder::Rank_update_ & meth );
// template<class Matrix>
// void randomInvertible();
// void randomNilpotent(int nil k); // P N_k P^(-1)
//
// Matrix& getMatrix(Matrix & A) {
// return A = A_ ;
// }
};
/// @todo To be factorized.
void RandomBlasPermutation(BlasPermutation<size_t> & P) ;
}
#include "linbox/matrix/random-matrix.inl"
// vim:sts=8:sw=8:ts=8:noet:sr:cino=>s,f0,{0,g0,(0,:0,t0,+0,=s
// Local Variables:
// mode: C++
// tab-width: 8
// indent-tabs-mode: nil
// c-basic-offset: 8
// End:
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