beyn_contour_t Struct Reference

Complex plane integration contour structure. More...

#include <beyn.h>

Collaboration diagram for beyn_contour_t:

Data Fields
size_t	n
complex double	centre
	"Centre" of the contour. More...
_Bool(*	inside_test )(struct beyn_contour_t *, complex double z)
	Function testing that a point z lies inside the contour (optional).
complex double	z_dz [][2]
	Pairs of contour points and derivatives in that points.

Detailed Description

Complex plane integration contour structure.

Field Documentation

centre

complex double beyn_contour_t::centre

"Centre" of the contour.

This point is used in the rescaling of the \( A_1 \) matrix as in Beyn's Remark 3.2 (b) in order to improve the numerical stability. It does not have to be a centre in some strictly defined sense, but it should be "somewhere around" where the contour is.

n

size_t beyn_contour_t::n

Number of discretisation points.

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

• qpms/beyn.h