alma::aux_cubic::Cubic_segment Class Reference

Objects of this class perform rational integrals of the kind found when approximating bands by piecewise cubic polynomials to obtain Green's functions in 1D. More...

#include <aux_cubic.hpp>

Public Member Functions
	Cubic_segment (double a, double b, double ap, double bp)
	Constructor. More...
std::array< double, 4 >	calc_integrals (double ener) const
	Obtain the values of the four integrals needed for the calculation of the Green's function at a particular energy. More...

Detailed Description

Objects of this class perform rational integrals of the kind found when approximating bands by piecewise cubic polynomials to obtain Green's functions in 1D.

Constructor & Destructor Documentation

Cubic_segment()

alma::aux_cubic::Cubic_segment::Cubic_segment ( double  a, double  b, double  ap, double  bp  )

inline

Constructor.

Parameters

[in]	a	- value of the energy at the left
[in]	b	- value of the energy at the right
[in]	ap	- derivative of the energy at the left
[in]	bp	- derivative of the energy at the right

Member Function Documentation

calc_integrals()

std::array<double, 4> alma::aux_cubic::Cubic_segment::calc_integrals ( double  ener ) const

inline

Obtain the values of the four integrals needed for the calculation of the Green's function at a particular energy.

Parameters

[in]

energ

- value of the energy

Returns

a vector with the four integrals in this order: ReG, ReGx, ImG, ImGx

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

• aux_cubic.hpp