Branin objective function. More...

#include <Branin.hpp>

Inheritance diagram for sgpp::optimization::test_problems::BraninObjective:

Public Member Functions
	BraninObjective ()
	Constructor. More...

void	clone (std::unique_ptr< ScalarFunction > &clone) const override

double	evalUndisplaced (const base::DataVector &x) override

	~BraninObjective () override
	Destructor. More...

Public Member Functions inherited from sgpp::optimization::test_problems::TestScalarFunction
double	eval (const base::DataVector &x) override
	Evaluate displaced function. More...

const base::DataVector &	getDisplacement () const

void	setDisplacement (const base::DataVector &displacement)

	TestScalarFunction (size_t d)
	Constructor. More...

	~TestScalarFunction () override
	Destructor. More...

Public Member Functions inherited from sgpp::optimization::ScalarFunction
size_t	getNumberOfParameters () const

	ScalarFunction (size_t d)
	Constructor. More...

virtual	~ScalarFunction ()
	Destructor. More...

Additional Inherited Members
Protected Attributes inherited from sgpp::optimization::test_problems::TestScalarFunction
base::DataVector	displacement
	displacement vector More...

base::DataVector	xTmp
	temporary vector for displacing More...

Protected Attributes inherited from sgpp::optimization::ScalarFunction
size_t	d
	dimension of the domain More...

Detailed Description

Branin objective function.

Definition:

\[\bar{f}(\bar{\vec{x}}) := \left(\bar{x}_2 - 5.1 \bar{x}_1^2/(4\pi^2) + 5 \bar{x}_1/\pi - 6\right)^2 + 10 \left(1 - 1/(8\pi)\right) \cos \bar{x}_1 + 10\]

Constructor & Destructor Documentation

◆ BraninObjective()

sgpp::optimization::test_problems::BraninObjective::BraninObjective ( )

Constructor.

Referenced by clone().

◆ ~BraninObjective()

sgpp::optimization::test_problems::BraninObjective::~BraninObjective ( )

override

Destructor.

Member Function Documentation

◆ clone()

void sgpp::optimization::test_problems::BraninObjective::clone ( std::unique_ptr< ScalarFunction > & clone ) const

overridevirtual

Parameters

[out] clone pointer to cloned object

Implements sgpp::optimization::ScalarFunction.

References BraninObjective().

◆ evalUndisplaced()

double sgpp::optimization::test_problems::BraninObjective::evalUndisplaced ( const base::DataVector & x )

overridevirtual

Parameters

x	point \(\vec{x} \in [0, 1]^d\)

Returns: \(f(\vec{x})\)

Implements sgpp::optimization::test_problems::TestScalarFunction.

References M_PI, and analyse_erg::tmp.

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

optimization/src/sgpp/optimization/test_problems/unconstrained/Branin.hpp
optimization/src/sgpp/optimization/test_problems/unconstrained/Branin.cpp

Public Member Functions