tensor_shell_matrix.h
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1 // The libMesh Finite Element Library.
2 // Copyright (C) 2002-2014 Benjamin S. Kirk, John W. Peterson, Roy H. Stogner
3 
4 // This library is free software; you can redistribute it and/or
5 // modify it under the terms of the GNU Lesser General Public
6 // License as published by the Free Software Foundation; either
7 // version 2.1 of the License, or (at your option) any later version.
8 
9 // This library is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 // Lesser General Public License for more details.
13 
14 // You should have received a copy of the GNU Lesser General Public
15 // License along with this library; if not, write to the Free Software
16 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 
18 
19 
20 #ifndef LIBMESH_TENSOR_SHELL_MATRIX_H
21 #define LIBMESH_TENSOR_SHELL_MATRIX_H
22 
23 
24 // Local includes
25 #include "libmesh/libmesh_common.h"
27 #include "libmesh/libmesh.h"
28 #include "libmesh/shell_matrix.h"
29 #include "libmesh/numeric_vector.h"
30 
31 namespace libMesh
32 {
33 
41 template <typename T>
42 class TensorShellMatrix : public ShellMatrix<T>
43 {
44 public:
50  const NumericVector<T>& w);
51 
55  virtual ~TensorShellMatrix ();
56 
61  virtual numeric_index_type m () const;
62 
67  virtual numeric_index_type n () const;
68 
73  virtual void vector_mult (NumericVector<T>& dest,
74  const NumericVector<T>& arg) const;
75 
79  virtual void vector_mult_add (NumericVector<T>& dest,
80  const NumericVector<T>& arg) const;
81 
85  virtual void get_diagonal (NumericVector<T>& dest) const;
86 
87 protected:
92 
97 
98 };
99 
100 
101 
102 //-----------------------------------------------------------------------
103 // TensorShellMatrix inline members
104 template <typename T>
105 inline
107  const NumericVector<T>& w):
108  ShellMatrix<T>(v.comm()),
109  _v(v),
110  _w(w)
111 {}
112 
113 
114 
115 template <typename T>
116 inline
118 {}
119 
120 
121 
122 template <typename T>
123 inline
125 {
126  return _v.size();
127 }
128 
129 
130 
131 template <typename T>
132 inline
134 {
135  return _w.size();
136 }
137 
138 
139 } // namespace libMesh
140 
141 
142 #endif // LIBMESH_TENSOR_SHELL_MATRIX_H

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