nf_exponentialIntegral.cc File Reference

#include "nf_specialFunctions.h"

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Macros
#define	EULER   0.57721566490153286 /* Euler's constant gamma */
#define	MAXIT   100 /* Maximum allowed number of iterations. */
#define	FPMIN   1.0e-300 /* close to the smallest representable floting-point number. */
#define	EPS   1.0e-15 /* Desired relative error, not smaller than the machine precision. */

Functions
double	nf_exponentialIntegral (int n, double x, nfu_status *status)

Macro Definition Documentation

#define EPS   1.0e-15 /* Desired relative error, not smaller than the machine precision. */

Definition at line 23 of file nf_exponentialIntegral.cc.

View newest version in sPHENIX GitHub at line 23 of file nf_exponentialIntegral.cc

Referenced by G4Ellipsoid::DistanceToIn(), G4Ellipsoid::DistanceToOut(), CylinderGeom_Mvtx::get_pixel_from_local_coords(), G4IntersectingCone::LineHitsCone1(), G4IntersectingCone::LineHitsCone2(), nanoflann::KDTreeSingleIndexAdaptor< nanoflann::L2_Simple_Adaptor< double, kdfinder::KDPointCloud< double > >, kdfinder::KDPointCloud< double >, 3 >::middleSplit_(), nf_exponentialIntegral(), and kdfinder::LinearFit< T >::rofunc().

#define EULER   0.57721566490153286 /* Euler's constant gamma */

Definition at line 20 of file nf_exponentialIntegral.cc.

View newest version in sPHENIX GitHub at line 20 of file nf_exponentialIntegral.cc

Referenced by nf_exponentialIntegral().

#define FPMIN   1.0e-300 /* close to the smallest representable floting-point number. */

Definition at line 22 of file nf_exponentialIntegral.cc.

View newest version in sPHENIX GitHub at line 22 of file nf_exponentialIntegral.cc

Referenced by nf_exponentialIntegral().

#define MAXIT   100 /* Maximum allowed number of iterations. */

Definition at line 21 of file nf_exponentialIntegral.cc.

View newest version in sPHENIX GitHub at line 21 of file nf_exponentialIntegral.cc

Referenced by nf_exponentialIntegral().

Function Documentation

double nf_exponentialIntegral	(	int	n,
		double	x,
		nfu_status *	status
	)

Definition at line 28 of file nf_exponentialIntegral.cc.

View newest version in sPHENIX GitHub at line 28 of file nf_exponentialIntegral.cc

References a, b, c, d, EPS, EULER, FPMIN, G4Exp(), G4Log(), Acts::UnitConstants::h, isfinite, MAXIT, n, nfu_badInput, nfu_failedToConverge, nfu_Okay, and x.

Referenced by MCGIDI_energy_parseMadlandNixFromTOM_callback_g().

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