MFEM  v4.2.0
Finite element discretization library
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mfem::RatioCoefficient Class Reference

Scalar coefficient defined as the ratio of two scalars where one or both scalars are scalar coefficients. More...

#include <coefficient.hpp>

Inheritance diagram for mfem::RatioCoefficient:
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Collaboration diagram for mfem::RatioCoefficient:
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Public Member Functions

 RatioCoefficient (double A, Coefficient &B)
 
 RatioCoefficient (Coefficient &A, Coefficient &B)
 
 RatioCoefficient (Coefficient &A, double B)
 
void SetAConst (double A)
 Reset the numerator in the ratio as a constant. More...
 
double GetAConst () const
 Return the numerator of the ratio. More...
 
void SetBConst (double B)
 Reset the denominator in the ratio as a constant. More...
 
double GetBConst () const
 Return the denominator of the ratio. More...
 
void SetACoef (Coefficient &A)
 Reset the numerator in the ratio. More...
 
CoefficientGetACoef () const
 Return the numerator of the ratio. More...
 
void SetBCoef (Coefficient &B)
 Reset the denominator in the ratio. More...
 
CoefficientGetBCoef () const
 Return the denominator of the ratio. More...
 
virtual double Eval (ElementTransformation &T, const IntegrationPoint &ip)
 Evaluate the coefficient. More...
 
- Public Member Functions inherited from mfem::Coefficient
 Coefficient ()
 
void SetTime (double t)
 Set the time for time dependent coefficients. More...
 
double GetTime ()
 Get the time for time dependent coefficients. More...
 
double Eval (ElementTransformation &T, const IntegrationPoint &ip, double t)
 Evaluate the coefficient in the element described by T at the point ip at time t. More...
 
virtual ~Coefficient ()
 

Additional Inherited Members

- Protected Attributes inherited from mfem::Coefficient
double time
 

Detailed Description

Scalar coefficient defined as the ratio of two scalars where one or both scalars are scalar coefficients.

Definition at line 984 of file coefficient.hpp.

Constructor & Destructor Documentation

mfem::RatioCoefficient::RatioCoefficient ( double  A,
Coefficient B 
)
inline

Initialize a coefficient which returns A / B where A is a constant and B is a scalar coefficient

Definition at line 995 of file coefficient.hpp.

mfem::RatioCoefficient::RatioCoefficient ( Coefficient A,
Coefficient B 
)
inline

Initialize a coefficient which returns A / B where A and B are both scalar coefficients

Definition at line 999 of file coefficient.hpp.

mfem::RatioCoefficient::RatioCoefficient ( Coefficient A,
double  B 
)
inline

Initialize a coefficient which returns A / B where A is a scalar coefficient and B is a constant

Definition at line 1003 of file coefficient.hpp.

Member Function Documentation

virtual double mfem::RatioCoefficient::Eval ( ElementTransformation T,
const IntegrationPoint ip 
)
inlinevirtual

Evaluate the coefficient.

Implements mfem::Coefficient.

Definition at line 1027 of file coefficient.hpp.

Coefficient* mfem::RatioCoefficient::GetACoef ( ) const
inline

Return the numerator of the ratio.

Definition at line 1019 of file coefficient.hpp.

double mfem::RatioCoefficient::GetAConst ( ) const
inline

Return the numerator of the ratio.

Definition at line 1009 of file coefficient.hpp.

Coefficient* mfem::RatioCoefficient::GetBCoef ( ) const
inline

Return the denominator of the ratio.

Definition at line 1024 of file coefficient.hpp.

double mfem::RatioCoefficient::GetBConst ( ) const
inline

Return the denominator of the ratio.

Definition at line 1014 of file coefficient.hpp.

void mfem::RatioCoefficient::SetACoef ( Coefficient A)
inline

Reset the numerator in the ratio.

Definition at line 1017 of file coefficient.hpp.

void mfem::RatioCoefficient::SetAConst ( double  A)
inline

Reset the numerator in the ratio as a constant.

Definition at line 1007 of file coefficient.hpp.

void mfem::RatioCoefficient::SetBCoef ( Coefficient B)
inline

Reset the denominator in the ratio.

Definition at line 1022 of file coefficient.hpp.

void mfem::RatioCoefficient::SetBConst ( double  B)
inline

Reset the denominator in the ratio as a constant.

Definition at line 1012 of file coefficient.hpp.


The documentation for this class was generated from the following file: