QMinimizer Class Reference

List of all members.

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Detailed Description

find maximum and minimum of a QMathFunction, the minimum search stops when |a - b| < epsabs + epsrel min(|a|,|b|)

Author:

Marco Vignati

Public Member Functions
	QMinimizer ()
	constructor
	~QMinimizer ()
	destructor
void	SetVerbose ()
	verbose (print iteration steps)
double	GetMinimum (QMathFunction func, double minx, double maxx, double epsabs=0.001, double epsrel=0.0)
	get function minimum
double	GetMaximum (QMathFunction func, double minx, double maxx, double epsabs=0.001, double epsrel=0.0)
	get function maximum
Static Private Member Functions
static double	MinusFunc (double x, double *params)
	pointer to mins this function, (to find maximum with the minimum algorithm)
Private Attributes
gsl_min_fminimizer *	fMinimizer
	underlying gsl minimizer
bool	fVerbose
	verbose
Static Private Attributes
static QMathFunction::QRoutinePointer	fCurrentFunction
	pointer to current function being minimized

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Member Function Documentation

double QMinimizer::GetMinimum	(	QMathFunction	func,
		double	minx,
		double	maxx,
		double	epsabs = 0.001,
		double	epsrel = 0.0
	)

get function minimum

Parameters:

	func	the function
	min	f(x_min)
	minpos	x_min
	epsabs	absolute precision
	epsrel	relative precision

double QMinimizer::GetMaximum	(	QMathFunction	func,
		double	minx,
		double	maxx,
		double	epsabs = 0.001,
		double	epsrel = 0.0
	)

get function maximum

Parameters:

	func	the function
	max	f(x_max)
	maxpos	x_max
	epsabs	absolute precision
	epsrel	relative precision

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

• /usr/local/cuore/pkg/coretools/QMinimizer.hh
• /usr/local/cuore/pkg/coretools/QMinimizer.cc

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