Interval.cpp File Reference

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Detailed Description

Interval class function definitions.

Definition in file Interval.cpp.

#include "Interval.h"

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Go to the source code of this file.

Defines
#define	invalidBits   0
#define	ROUNDUP(x)   (((x < 0.0) ? oneMinusEpsilon : onePlusEpsilon) * (x) + realEta)
#define	ROUNDDOWN(x)   (((x < 0.0) ? onePlusEpsilon : oneMinusEpsilon) * (x) - realEta)
#define	IABS_MAX(x, y)   (((x) < (y)) ? (y) : (x))
Functions
void	findEta ()
	This method is called upon first object initialization to calculate the variables realEta, onePlusEpsilon, and oneMinusEpsilon.
Variables
double	realEta = 0.0
	min { x > 0}
double	onePlusEpsilon = 1.0
	1.0 + n * epsilon
double	oneMinusEpsilon = 1.0
	1.0 - n * epsilon
bool	etaFound = false
	Has findEta() been called yet?

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Define Documentation

#define IABS_MAX (  x, y   )     (((x) < (y)) ? (y) : (x))

Definition at line 354 of file Interval.cpp. Referenced by Interval< Type >::fabs().

#define invalidBits   0

Definition at line 24 of file Interval.cpp. Referenced by findEta().

#define ROUNDDOWN (  x   )     (((x < 0.0) ? onePlusEpsilon : oneMinusEpsilon) * (x) - realEta)

Definition at line 209 of file Interval.cpp. Referenced by Interval< Type >::log().

#define ROUNDUP (  x   )     (((x < 0.0) ? oneMinusEpsilon : onePlusEpsilon) * (x) + realEta)

Definition at line 207 of file Interval.cpp. Referenced by Interval< Type >::log().

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Function Documentation

void findEta (   )

This method is called upon first object initialization to calculate the variables realEta, onePlusEpsilon, and oneMinusEpsilon. These variables are used by log() and pow(Interval<>) (via ROUNDUP and ROUNDDOWN). Definition at line 37 of file Interval.cpp. References epsilon, etaFound, invalidBits, oneMinusEpsilon, onePlusEpsilon, and realEta. Referenced by Interval< Type >::init().

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Variable Documentation

bool etaFound = false [static]

Has findEta() been called yet? Definition at line 29 of file Interval.cpp. Referenced by findEta().

double oneMinusEpsilon = 1.0 [static]

1.0 - n * epsilon Definition at line 28 of file Interval.cpp. Referenced by findEta().

double onePlusEpsilon = 1.0 [static]

1.0 + n * epsilon Definition at line 27 of file Interval.cpp. Referenced by findEta().

double realEta = 0.0 [static]

min { x > 0} Definition at line 26 of file Interval.cpp. Referenced by findEta().

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