DiagonalMatrix.C
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25 
26 #include "DiagonalMatrix.H"
27 
28 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
29 
30 template<class Type>
32 :
33  List<Type>()
34 {}
35 
36 
37 template<class Type>
38 template<class Form>
40 :
41  List<Type>(min(a.m(), a.n()))
42 {
43  forAll(*this, i)
44  {
45  this->operator[](i) = a(i, i);
46  }
47 }
48 
49 
50 template<class Type>
52 :
53  List<Type>(size)
54 {}
55 
56 
57 template<class Type>
59 :
60  List<Type>(size, val)
61 {}
62 
63 
64 template<class Type>
66 :
67  List<Type>(is)
68 {}
69 
70 
71 // * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
72 
73 template<class Type>
75 {
76  forAll(*this, i)
77  {
78  Type x = this->operator[](i);
79  if (mag(x) < vSmall)
80  {
81  this->operator[](i) = Type(0);
82  }
83  else
84  {
85  this->operator[](i) = Type(1)/x;
86  }
87  }
88 
89  return this;
90 }
91 
92 
93 template<class Type>
95 {
96  DiagonalMatrix<Type> Ainv = A;
97 
98  forAll(A, i)
99  {
100  Type x = A[i];
101  if (mag(x) < vSmall)
102  {
103  Ainv[i] = Type(0);
104  }
105  else
106  {
107  Ainv[i] = Type(1)/x;
108  }
109  }
110 
111  return Ainv;
112 }
113 
114 
115 // ************************************************************************* //
#define forAll(list, i)
Loop across all elements in list.
Definition: UList.H:434
A 1D array of objects of type <T>, where the size of the vector is known and used for subscript bound...
Definition: HashTable.H:59
dimensionedSphericalTensor inv(const dimensionedSphericalTensor &dt)
An Istream is an abstract base class for all input systems (streams, files, token lists etc)...
Definition: Istream.H:57
DiagonalMatrix<Type> is a 2D diagonal matrix of objects of type Type, size nxn.
layerAndWeight min(const layerAndWeight &a, const layerAndWeight &b)
A templated (m x n) matrix of objects of <T>.
DiagonalMatrix< Type > & invert()
Invert the diagonal matrix and return itself.
DiagonalMatrix()
Null constructor.
dimensioned< scalar > mag(const dimensioned< Type > &)
label n