hp2D::Extrema< T > Class Template Reference

#include <extrema.hh>

Inheritance diagram for hp2D::Extrema< T >:

Public Member Functions
	Extrema (const concepts::SpaceOnCells< Real > &spc, const concepts::ElementFormula< Real > &formula, const concepts::ElementFormula< Real2d > *formulaGrad=0, uint np=2, bool report=false)
Real	get () const

Static Public Attributes
static Extrema< T > *	pt2Object
	Inner static pointer to object, used by the wrapper.

Protected Member Functions
virtual std::ostream &	info (std::ostream &os) const override
	Returns information in an output stream.

Detailed Description

template<concepts::Optimize T>
class hp2D::Extrema< T >

An interface class that computes the maximum/minimum of a function represented as an ElementFormula on an space on hp2D::Quad<Real> only.

Author

Robert Gruhlke, 2015

Definition at line 42 of file extrema.hh.

Constructor & Destructor Documentation

Extrema()

template<concepts::Optimize T>

hp2D::Extrema< T >::Extrema	(	const concepts::SpaceOnCells< Real > &	spc,
		const concepts::ElementFormula< Real > &	formula,
		const concepts::ElementFormula< Real2d > *	formulaGrad = 0,
		uint	np = 2,
		bool	report = false
	)

http://www.alglib.net/translator/man/manual.cpp.html#unit_minbleic

There are two modi implemented. We apply an gradient approximation active set strategy, that is numerical unstable and expensive in the sense of function evaluations, if the gradient of the function is not given.

Therefore with the alternative uses the analytical gradient of local solution, that should be the choice.

The number controls the number of startpoints that are equidistant distributed on the inner of . For local solution where more that a local maximum is supposed this might be usefull.

Parameters

spc	space on which the formula is given
formula	function
formulaGrad	gradient of the function (default = 0)
np	np^2 = number of equidistant start points in one direction (defualt np=2)
report	set 'true' for detailed report

Member Function Documentation

info()

template<concepts::Optimize T>

virtual std::ostream & hp2D::Extrema< T >::info ( std::ostream &  os ) const

overrideprotectedvirtual

Returns information in an output stream.

Reimplemented from concepts::OutputOperator.

Member Data Documentation

pt2Object

template<concepts::Optimize T>

Extrema<T>* hp2D::Extrema< T >::pt2Object

static

Inner static pointer to object, used by the wrapper.

Definition at line 76 of file extrema.hh.

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

• hp2D/extrema.hh