MFEM
v4.4.0
Finite element discretization library
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Matrix coefficient defined as the linear combination of two matrices. More...
#include <coefficient.hpp>
Public Member Functions | |
MatrixSumCoefficient (MatrixCoefficient &A, MatrixCoefficient &B, double alpha_=1.0, double beta_=1.0) | |
Construct with the two coefficients. Result is alpha_ * A + beta_ * B. More... | |
void | SetTime (double t) |
Set the time for internally stored coefficients. More... | |
void | SetACoef (MatrixCoefficient &A) |
Reset the first matrix coefficient. More... | |
MatrixCoefficient * | GetACoef () const |
Return the first matrix coefficient. More... | |
void | SetBCoef (MatrixCoefficient &B) |
Reset the second matrix coefficient. More... | |
MatrixCoefficient * | GetBCoef () const |
Return the second matrix coefficient. More... | |
void | SetAlpha (double alpha_) |
Reset the factor in front of the first matrix coefficient. More... | |
double | GetAlpha () const |
Return the factor in front of the first matrix coefficient. More... | |
void | SetBeta (double beta_) |
Reset the factor in front of the second matrix coefficient. More... | |
double | GetBeta () const |
Return the factor in front of the second matrix coefficient. More... | |
virtual void | Eval (DenseMatrix &M, ElementTransformation &T, const IntegrationPoint &ip) |
Evaluate the matrix coefficient at ip. More... | |
Public Member Functions inherited from mfem::MatrixCoefficient | |
MatrixCoefficient (int dim, bool symm=false) | |
Construct a dim x dim matrix coefficient. More... | |
MatrixCoefficient (int h, int w, bool symm=false) | |
Construct a h x w matrix coefficient. More... | |
double | GetTime () |
Get the time for time dependent coefficients. More... | |
int | GetHeight () const |
Get the height of the matrix. More... | |
int | GetWidth () const |
Get the width of the matrix. More... | |
int | GetVDim () const |
For backward compatibility get the width of the matrix. More... | |
bool | IsSymmetric () const |
virtual void | EvalSymmetric (Vector &K, ElementTransformation &T, const IntegrationPoint &ip) |
(DEPRECATED) Evaluate a symmetric matrix coefficient. More... | |
virtual | ~MatrixCoefficient () |
Additional Inherited Members | |
Protected Attributes inherited from mfem::MatrixCoefficient | |
int | height |
int | width |
double | time |
bool | symmetric |
Matrix coefficient defined as the linear combination of two matrices.
Definition at line 1810 of file coefficient.hpp.
mfem::MatrixSumCoefficient::MatrixSumCoefficient | ( | MatrixCoefficient & | A, |
MatrixCoefficient & | B, | ||
double | alpha_ = 1.0 , |
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double | beta_ = 1.0 |
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Construct with the two coefficients. Result is alpha_ * A + beta_ * B.
Definition at line 1043 of file coefficient.cpp.
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Evaluate the matrix coefficient at ip.
Implements mfem::MatrixCoefficient.
Definition at line 1062 of file coefficient.cpp.
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Return the first matrix coefficient.
Definition at line 1832 of file coefficient.hpp.
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Return the factor in front of the first matrix coefficient.
Definition at line 1842 of file coefficient.hpp.
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Return the second matrix coefficient.
Definition at line 1837 of file coefficient.hpp.
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Return the factor in front of the second matrix coefficient.
Definition at line 1847 of file coefficient.hpp.
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Reset the first matrix coefficient.
Definition at line 1830 of file coefficient.hpp.
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Reset the factor in front of the first matrix coefficient.
Definition at line 1840 of file coefficient.hpp.
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Reset the second matrix coefficient.
Definition at line 1835 of file coefficient.hpp.
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Reset the factor in front of the second matrix coefficient.
Definition at line 1845 of file coefficient.hpp.
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Set the time for internally stored coefficients.
Reimplemented from mfem::MatrixCoefficient.
Definition at line 1055 of file coefficient.cpp.