留学生考试辅导 tnt_cmat.h Source File

tnt_cmat.h Source File

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tnt_cmat.h
Go to the documentation of this file.00001 /*
00003 * Template Numerical Toolkit (TNT)
00005 * Mathematical and Computational Sciences Division
00006 * National Institute of Technology,
00007 * Gaithersburg, MD USA
00010 * This software was developed at the National Institute of Standards and
00011 * Technology (NIST) by employees of the Federal Government in the course
00012 * of their official duties. Pursuant to title 17 Section 105 of the
00013 * United States Code, this software is not subject to copyright protection
00014 * and is in the public domain. NIST assumes no responsibility whatsoever for
00015 * its use by other parties, and makes no guarantees, expressed or implied,
00016 * about its quality, reliability, or any other characteristic.
00022 #ifndef TNT_CMAT_H
00023 #define TNT_CMAT_H
00025 #include “tnt_subscript.h”
00026 #include “tnt_vec.h”
00027 #include
00028 #include
00029 #include
00030 #include
00032 namespace TNT
00043 template
00044 class Matrix
00048 public:
00050 typedef Subscript size_type;
00051 typedef T value_type;
00052 typedef T element_type;
00053 typedef T* pointer;
00054 typedef T* iterator;
00055 typedef T& reference;
00056 typedef const T* const_iterator;
00057 typedef const T& const_reference;
00059 Subscript lbound() const { return 1;}
00061 protected:
00062 Subscript m_;
00063 Subscript n_;
00064 Subscript mn_; // total size
00065 T* v_;
00066 T** row_;
00067 T* vm1_ ; // these point to the same data, but are 1-based
00068 T** rowm1_;
00070 public:
00072 operator T**(){ return row_; }
00073 operator T**() const { return row_; }
00076 Subscript size() const { return mn_; }
00078 // constructors
00080 Matrix();
00082 Matrix(const Matrix &A);
00084 Matrix(Subscript M, Subscript N, const T& value = T());
00086 Matrix(Subscript M, Subscript N, const T* v);
00088 Matrix(Subscript M, Subscript N, const char *s);
00090 ~Matrix();
00093 Matrix& newsize(Subscript M, Subscript N);
00097 Matrix& operator=(const Matrix &A);
00099 Matrix& operator=(const T& scalar);
00102 Subscript dim(Subscript d) const ;
00103 Subscript num_rows() const { return m_; }
00104 Subscript num_cols() const { return n_; }
00109 inline T* operator[](Subscript i);
00111 inline const T* operator[](Subscript i) const;
00113 inline reference operator()(Subscript i);
00115 inline const_reference operator()(Subscript i) const;
00118 inline reference operator()(Subscript i, Subscript j);
00122 inline const_reference operator() (Subscript i, Subscript j) const;
00128 /* *************************** I/O ********************************/
00130 template
00131 std::ostream& operator<<(std::ostream &s, const Matrix &A);
00133 template
00134 std::istream& operator>>(std::istream &s, Matrix &A);
00136 // *******************[ basic matrix algorithms ]***************************
00139 template
00140 Matrix operator+(const Matrix &A, const Matrix &B);
00142 template
00143 Matrix operator-(const Matrix &A, const Matrix &B);
00145 template
00146 Matrix mult_element(const Matrix &A, const Matrix &B);
00149 template
00150 Matrix transpose(const Matrix &A);
00154 template
00155 inline Matrix matmult(const Matrix &A, const Matrix &B);
00157 template
00158 inline Matrix operator*(const Matrix &A, const Matrix &B);
00160 template
00161 inline int matmult(Matrix& C, const Matrix &A, const Matrix &B);
00164 template
00165 Vector matmult(const Matrix &A, const Vector &x);
00167 template
00168 inline Vector operator*(const Matrix &A, const Vector &x) ;
00170 } // namespace TNT
00172 #endif
00173 // CMAT_H

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