H2a3a. One dimensional semi-infinite interval quadrature

Functions
void	_dehint (double(*f)(double), double a, double eps, double *result, int *neval, int *l, int *info)
	Semi-infinite interval automatic quadrature (double exponential (DE) formula)
void	_dehint_r (double a, double eps, double *result, int *neval, int *l, int *info, double *xx, double yy, int *irev)
	Semi-infinite interval automatic quadrature (double exponential (DE) formula) (reverse communication version)
void	_deoint (double(*f)(double), double a, double omega, int iflag, double eps, double *result, int *neval, double *err, int *info)
	Semi-infinite interval automatic quadrature for Fourier integrals (double exponential (DE) formula)
void	_deoint_r (double a, double omega, int iflag, double eps, double *result, int *neval, double *err, int *info, double *xx, double yy, int *irev)
	Semi-infinite interval automatic quadrature for Fourier integrals (double exponential (DE) formula) (reverse communication version)
void	_qagi (double(*f)(double), double bound, int inf, double epsabs, double epsrel, int limit, double *result, double *abserr, int *neval, int *last, double work[], int lwork, int iwork[], int *info)
	Semi-infinite/infinite interval adaptive quadrature (15-point Gauss-Kronrod rule)
void	_qagi_r (double bound, int inf, double epsabs, double epsrel, int limit, double *result, double *abserr, int *neval, int *last, double work[], int lwork, int iwork[], int *info, double *xx, double yy, int *irev)
	Semi-infinite/infinite interval adaptive quadrature (15-point Gauss-Kronrod rule) (reverse communication version)
void	_qawf (double(*f)(double), double a, double omega, int integr, double epsabs, int limlst, int limit, int maxp1, double *result, double *abserr, int *neval, int *lst, double work[], int lwork, int iwork[], int liwork, int *info)
	Semi-infinite interval adaptive quadrature for Fourier integrals (25-point Clenshaw-Curtis and 15-point Gauss-Kronrod rule)
void	_qawf_r (double a, double omega, int integr, double epsabs, int limlst, int limit, int maxp1, double *result, double *abserr, int *neval, int *lst, double work[], int lwork, int iwork[], int liwork, int *info, double *xx, double yy, int *irev)
	Semi-infinite interval adaptive quadrature for Fourier integrals (25-point Clenshaw-Curtis and 15-point Gauss-Kronrod rule) (reverse communication version)
void	_qk15i (double(*f)(double), double bound, int inf, double a, double b, double *result, double *abserr, double *resabs, double *resasc)
	Semi-infinite/infinite interval quadrature (15-point Gauss-Kronrod rule)
void	_qk15i_r (double bound, int inf, double a, double b, double *result, double *abserr, double *resabs, double *resasc, double *xx, double yy, int *irev)
	Semi-infinite/infinite interval quadrature (15-point Gauss-Kronrod rule) (reverse communication version)

Detailed Description

This is the group of H2a3a. One dimensional semi-infinite interval quadrature (user-defined integrand function).