Intrepid
Intrepid_HGRAD_TET_Cn_FEM_ORTH.hpp
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49#ifndef INTREPID_HGRAD_TET_Cn_FEM_ORTH_HPP
50#define INTREPID_HGRAD_TET_Cn_FEM_ORTH_HPP
51
52#include "Intrepid_Basis.hpp"
53#include "Sacado.hpp"
54
55namespace Intrepid {
56
66template<class Scalar, class ArrayScalar>
67class Basis_HGRAD_TET_Cn_FEM_ORTH: public Basis<Scalar, ArrayScalar> {
68private:
71 void initializeTags();
72
73public:
74
78 Basis_HGRAD_TET_Cn_FEM_ORTH( int degree );
79
80
91 void getValues(ArrayScalar & outputValues,
92 const ArrayScalar & inputPoints,
93 const EOperator operatorType) const;
94
95
98 void getValues(ArrayScalar & outputValues,
99 const ArrayScalar & inputPoints,
100 const ArrayScalar & cellVertices,
101 const EOperator operatorType = OPERATOR_VALUE) const;
102
103};
104
118template<typename Scalar,typename ArrayScalar, unsigned derivOrder>
120{
121public:
131 static void tabulate( ArrayScalar & outputValues ,
132 const int deg ,
133 const ArrayScalar &inputPoints );
134};
135
136
141template<typename Scalar,typename ArrayScalar>
142class TabulatorTet<Scalar,ArrayScalar,0>
143{
144public:
153 static void tabulate( ArrayScalar & outputValues ,
154 const int deg ,
155 const ArrayScalar &inputPoints );
156
162 static int idx(int p, int q,int r)
163 {
164 return (p+q+r)*(p+q+r+1)*(p+q+r+2)/6+(q+r)*(q+r+1)/2+r;
165 }
166
184 static void jrc( const Scalar &alpha , const Scalar &beta ,
185 const int &n ,
186 Scalar &an , Scalar &bn, Scalar &cn )
187
188 {
189 an = (2.0 * n + 1.0 + alpha + beta) * ( 2.0 * n + 2.0 + alpha + beta )
190 / ( 2.0 * ( n + 1 ) * ( n + 1 + alpha + beta ) );
191 bn = (alpha*alpha-beta*beta)*(2.0*n+1.0+alpha+beta)
192 / ( 2.0*(n+1.0)*(2.0*n+alpha+beta)*(n+1.0+alpha+beta) );
193 cn = (n+alpha)*(n+beta)*(2.0*n+2.0+alpha+beta)
194 / ( (n+1.0)*(n+1.0+alpha+beta)*(2.0*n+alpha+beta) );
195
196 return;
197 }
198
199
200
201};
202
209template<typename Scalar,typename ArrayScalar>
210class TabulatorTet<Scalar,ArrayScalar,1>
211{
212public:
222 static void tabulate( ArrayScalar & outputValues ,
223 const int deg ,
224 const ArrayScalar &inputPoints );
225
226};
227
228
229
230}// namespace Intrepid
231
233
234#endif
235
Header file for the abstract base class Intrepid::Basis.
Definition file for FEM orthogonal basis functions of arbitrary degree for H(grad) functions on TET.
void initializeTags()
Initializes tagToOrdinal_ and ordinalToTag_ lookup arrays.
void getValues(ArrayScalar &outputValues, const ArrayScalar &inputPoints, const EOperator operatorType) const
Evaluation of a FEM basis on a reference Tetrahedron cell.
static int idx(int p, int q, int r)
function for indexing from orthogonal expansion indices into linear space p+q+r = the degree of the p...
static void jrc(const Scalar &alpha, const Scalar &beta, const int &n, Scalar &an, Scalar &bn, Scalar &cn)
function for computing the Jacobi recurrence coefficients so that
This is an internal class with a static member function for tabulating derivatives of orthogonal expa...
static void tabulate(ArrayScalar &outputValues, const int deg, const ArrayScalar &inputPoints)
basic tabulate mathod evaluates the derivOrder^th derivatives of the basis functions at inputPoints i...