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comparison liboctave/CmplxQR.h @ 7553:56be6f31dd4e

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implementation of QR factorization updating
author Jaroslav Hajek <highegg@gmail.com>
date Tue, 04 Mar 2008 21:47:11 -0500
parents a1dbe9d80eee
children 40574114c514
comparison
equal deleted inserted replaced
7552:6070c3bd69c4 7553:56be6f31dd4e
25 #define octave_ComplexQR_h 1 25 #define octave_ComplexQR_h 1
26 26
27 #include <iostream> 27 #include <iostream>
28 28
29 #include "CMatrix.h" 29 #include "CMatrix.h"
30 #include "CColVector.h"
31 #include "CRowVector.h"
30 #include "dbleQR.h" 32 #include "dbleQR.h"
33
31 34
32 class 35 class
33 OCTAVE_API 36 OCTAVE_API
34 ComplexQR 37 ComplexQR
35 { 38 {
36 public: 39 public:
37 40
38 ComplexQR (void) : q (), r () { } 41 ComplexQR (void) : q (), r () { }
39 42
40 ComplexQR (const ComplexMatrix&, QR::type = QR::std); 43 ComplexQR (const ComplexMatrix&, QR::type = QR::std);
44
45 ComplexQR (const ComplexMatrix& q, const ComplexMatrix& r);
41 46
42 ComplexQR (const ComplexQR& a) : q (a.q), r (a.r) { } 47 ComplexQR (const ComplexQR& a) : q (a.q), r (a.r) { }
43 48
44 ComplexQR& operator = (const ComplexQR& a) 49 ComplexQR& operator = (const ComplexQR& a)
45 { 50 {
57 62
58 ComplexMatrix Q (void) const { return q; } 63 ComplexMatrix Q (void) const { return q; }
59 64
60 ComplexMatrix R (void) const { return r; } 65 ComplexMatrix R (void) const { return r; }
61 66
67 void update (const ComplexMatrix& u, const ComplexMatrix& v);
68
69 void insert_col (const ComplexMatrix& u, octave_idx_type j);
70
71 void delete_col (octave_idx_type j);
72
73 void insert_row (const ComplexMatrix& u, octave_idx_type j);
74
75 void delete_row (octave_idx_type j);
76
77 void economize();
78
62 friend std::ostream& operator << (std::ostream&, const ComplexQR&); 79 friend std::ostream& operator << (std::ostream&, const ComplexQR&);
63 80
64 protected: 81 protected:
65 82
66 ComplexMatrix q; 83 ComplexMatrix q;