GNU Octave  4.4.1
A high-level interpreted language, primarily intended for numerical computations, mostly compatible with Matlab
fDiagMatrix.h
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1 /*
2 
3 Copyright (C) 1994-2018 John W. Eaton
4 
5 This file is part of Octave.
6 
7 Octave is free software: you can redistribute it and/or modify it
8 under the terms of the GNU General Public License as published by
9 the Free Software Foundation, either version 3 of the License, or
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15 GNU General Public License for more details.
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17 You should have received a copy of the GNU General Public License
18 along with Octave; see the file COPYING. If not, see
19 <https://www.gnu.org/licenses/>.
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21 */
22 
23 #if ! defined (octave_fDiagMatrix_h)
24 #define octave_fDiagMatrix_h 1
25 
26 #include "octave-config.h"
27 
28 #include "DET.h"
29 #include "MDiagArray2.h"
30 #include "fColVector.h"
31 #include "fRowVector.h"
32 #include "mx-defs.h"
33 
34 class
35 OCTAVE_API
37 {
38 public:
39 
41 
43 
45  : MDiagArray2<float> (r, c) { }
46 
48  : MDiagArray2<float> (r, c, val) { }
49 
51 
53 
54  template <typename U>
56 
57  explicit FloatDiagMatrix (const Array<double>& a) : MDiagArray2<float> (a) { }
58 
60  : MDiagArray2<float> (a, r, c) { }
61 
63  {
65  return *this;
66  }
67 
68  bool operator == (const FloatDiagMatrix& a) const;
69  bool operator != (const FloatDiagMatrix& a) const;
70 
71  FloatDiagMatrix& fill (float val);
77 
79  { return MDiagArray2<float>::transpose (); }
80 
81  FloatDiagMatrix abs (void) const;
82 
83  friend OCTAVE_API FloatDiagMatrix real (const FloatComplexDiagMatrix& a);
84  friend OCTAVE_API FloatDiagMatrix imag (const FloatComplexDiagMatrix& a);
85 
86  // resize is the destructive analog for this one
87 
89  octave_idx_type r2, octave_idx_type c2) const;
90 
91  // extract row or column i.
92 
94  FloatRowVector row (char *s) const;
95 
97  FloatColumnVector column (char *s) const;
98 
99  FloatDiagMatrix inverse (void) const;
100  FloatDiagMatrix inverse (octave_idx_type& info) const;
101  FloatDiagMatrix pseudo_inverse (float tol = 0.0f) const;
102 
103  // other operations
104 
106  { return MDiagArray2<float>::extract_diag (k); }
107 
108  FloatDET determinant (void) const;
109  float rcond (void) const;
110 
111  // i/o
112 
113  friend OCTAVE_API std::ostream& operator << (std::ostream& os,
114  const FloatDiagMatrix& a);
115 
116 };
117 
118 OCTAVE_API FloatDiagMatrix real (const FloatComplexDiagMatrix& a);
119 OCTAVE_API FloatDiagMatrix imag (const FloatComplexDiagMatrix& a);
120 
121 // diagonal matrix by diagonal matrix -> diagonal matrix operations
122 
123 OCTAVE_API FloatDiagMatrix operator * (const FloatDiagMatrix& a,
124  const FloatDiagMatrix& b);
125 
127 
128 #endif
FloatColumnVector extract_diag(octave_idx_type k=0) const
Definition: fDiagMatrix.h:105
OCTAVE_EXPORT octave_value_list column
Definition: sparse.cc:123
bool operator!=(const dim_vector &a, const dim_vector &b)
Definition: dim-vector.h:566
OCTAVE_API FloatDiagMatrix imag(const FloatComplexDiagMatrix &a)
Definition: fDiagMatrix.cc:138
identity matrix If supplied two scalar respectively For allows like xample val
Definition: data.cc:4986
F77_RET_T const F77_REAL const F77_REAL F77_REAL &F77_RET_T const F77_DBLE const F77_DBLE F77_DBLE &F77_RET_T const F77_DBLE F77_DBLE &F77_RET_T const F77_REAL F77_REAL &F77_RET_T const F77_DBLE const F77_DBLE * f
FloatComplexColumnVector & operator=(const FloatComplexColumnVector &a)
Definition: fCColVector.h:64
FloatComplexColumnVector extract(octave_idx_type r1, octave_idx_type r2) const
Definition: fCColVector.cc:225
for large enough k
Definition: lu.cc:617
FloatDiagMatrix(const MDiagArray2< float > &a)
Definition: fDiagMatrix.h:52
OCTAVE_API FloatDiagMatrix real(const FloatComplexDiagMatrix &a)
Definition: fDiagMatrix.cc:132
static T abs(T x)
Definition: pr-output.cc:1696
FloatDiagMatrix(octave_idx_type r, octave_idx_type c, float val)
Definition: fDiagMatrix.h:47
#define MDIAGARRAY2_FORWARD_DEFS(B, R, T)
Definition: MDiagArray2.h:126
nd example oindent opens the file binary numeric values will be read assuming they are stored in IEEE format with the least significant bit and then converted to the native representation Opening a file that is already open simply opens it again and returns a separate file id It is not an error to open a file several though writing to the same file through several different file ids may produce unexpected results The possible values of text mode reading and writing automatically converts linefeeds to the appropriate line end character for the you may append a you must also open the file in binary mode The parameter conversions are currently only supported for and permissions will be set to and then everything is written in a single operation This is very efficient and improves performance c
Definition: file-io.cc:587
s
Definition: file-io.cc:2729
FloatDiagMatrix(octave_idx_type r, octave_idx_type c)
Definition: fDiagMatrix.h:44
Template for two dimensional diagonal array with math operators.
Definition: MDiagArray2.h:32
calling an anonymous function involves an overhead quite comparable to the overhead of an m file function Passing a handle to a built in function is because the interpreter is not involved in the internal loop For a
Definition: cellfun.cc:400
FloatMatrix full_matrix_type
Definition: fDiagMatrix.h:40
Definition: DET.h:34
FloatDiagMatrix(const Array< float > &a, octave_idx_type r, octave_idx_type c)
Definition: fDiagMatrix.h:59
MDiagArray2< T > & operator=(const MDiagArray2< T > &a)
Definition: MDiagArray2.h:77
bool operator==(const dim_vector &a, const dim_vector &b)
Definition: dim-vector.h:550
FloatDiagMatrix transpose(void) const
Definition: fDiagMatrix.h:78
FloatDiagMatrix(const DiagArray2< U > &a)
Definition: fDiagMatrix.h:55
FloatDiagMatrix(const FloatDiagMatrix &a)
Definition: fDiagMatrix.h:50
FloatDiagMatrix(const Array< double > &a)
Definition: fDiagMatrix.h:57
MDiagArray2< T > transpose(void) const
Definition: MDiagArray2.h:103
Array< T > extract_diag(octave_idx_type k=0) const
Definition: DiagArray2.cc:50
template OCTAVE_API std::ostream & operator<<(std::ostream &, const Array< bool > &)
b
Definition: cellfun.cc:400
OCTAVE_API FloatDiagMatrix operator*(const FloatDiagMatrix &a, const FloatDiagMatrix &b)
Definition: fDiagMatrix.cc:280
FloatComplexColumnVector & fill(float val)
Definition: fCColVector.cc:101
for i
Definition: data.cc:5264
FloatDiagMatrix(void)
Definition: fDiagMatrix.h:42
octave::stream os
Definition: file-io.cc:627
where the brackets indicate optional arguments and and character or cell array For character arrays the conversion is repeated for every row
Definition: str2double.cc:342