oomph::deriv_functions::DampedOscillation Class Reference

A damped oscillation solution. More...

#include <ode_example_functions.h>

Inheritance diagram for oomph::deriv_functions::DampedOscillation:

Public Member Functions
	DampedOscillation ()
	Constructor. More...
virtual	~DampedOscillation ()
	Virtual destructor. More...
Vector< double >	operator() (const double &t, const Vector< double > &x) const
	Function call. More...
Vector< double >	derivative (const double &t, const Vector< double > &x, const Vector< double > &u) const
	Derivative call. More...
Public Member Functions inherited from oomph::SolutionFunctorBase
virtual	~SolutionFunctorBase ()
	Virtual destructor. More...
virtual void	jacobian (const double &t, const Vector< double > &x, const Vector< double > &u, DenseMatrix< double > &jacobian) const
virtual bool	have_jacobian () const
	Is a jacobian function implemented? More...
virtual void	initialise_from_problem (const Problem *problem_pt)
	Overload to grab data from the problem. More...

Public Attributes
double	Beta
double	Omega

Additional Inherited Members
Public Types inherited from oomph::SolutionFunctorBase
typedef double(*	TimeSpaceToDoubleFctPt) (const double &t, const Vector< double > &x)
	General function of space and time which returns a double. More...
typedef Vector< double >(*	TimeSpaceToDoubleVectFctPt) (const double &t, const Vector< double > &x)
	General function of space and time which returns a vector of doubles. More...
typedef Vector< double >(*	TimeSpaceValueToDoubleVectFctPt) (const double &t, const Vector< double > &x, const Vector< double > &u)

Detailed Description

A damped oscillation solution.

Constructor & Destructor Documentation

DampedOscillation()

oomph::deriv_functions::DampedOscillation::DampedOscillation ( )

inline

Constructor.

   {
    Beta = 0.5;
    Omega = 2;
   }

References Global::Beta, and oomph::SarahBL::Omega.

~DampedOscillation()

virtual oomph::deriv_functions::DampedOscillation::~DampedOscillation ( )

inlinevirtual

Virtual destructor.

{}

Member Function Documentation

derivative()

Vector<double> oomph::deriv_functions::DampedOscillation::derivative ( const double &  t, const Vector< double > &  x, const Vector< double > &  u  ) const

inlinevirtual

Derivative call.

Implements oomph::SolutionFunctorBase.

   {
    Vector<double> deriv(1, 0.0);
    deriv[0] = -Beta * std::exp(-Beta*t) * std::sin(Omega*t)
     + Omega * std::exp(-Beta*t) * std::cos(Omega*t);
    return deriv;
   }

References Global::Beta, cos(), oomph::deriv_functions::exp(), oomph::SarahBL::Omega, sin(), and plotPSD::t.

operator()()

Vector<double> oomph::deriv_functions::DampedOscillation::operator() ( const double &  t, const Vector< double > &  x  ) const

inlinevirtual

Function call.

Implements oomph::SolutionFunctorBase.

   {
    Vector<double> values(1);
    values[0] = std::exp(-Beta*t) * std::sin(Omega*t);
    return values;
   }

References Global::Beta, oomph::deriv_functions::exp(), oomph::SarahBL::Omega, sin(), and plotPSD::t.

Member Data Documentation

Beta

double oomph::deriv_functions::DampedOscillation::Beta

Omega

double oomph::deriv_functions::DampedOscillation::Omega

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

• ode_example_functions.h