THCA< T_value >::TGeneratorFn Class Reference

class defining kernel generator function used by HCA

#include <TLowRankApx.hh>

Inheritance diagram for THCA< T_value >::TGeneratorFn:

Public Member Functions
virtual bool	is_complex () const
	indicate complex nature of function
virtual value_t	eval (const T3Point &x, const T3Point &y) const =0
virtual void	integrate_dx (const TIndexSet &is, const std::vector< T3Point > &pts, BLAS::Matrix< value_t > &matrix) const =0
virtual void	integrate_dy (const TIndexSet &is, const std::vector< T3Point > &pts, BLAS::Matrix< value_t > &matrix) const =0

Member Function Documentation

eval()

template<typename T_value >

virtual value_t eval ( const T3Point &  x, const T3Point &  y  ) const

pure virtual

Evaluate generator function γ at (x, y).

Implemented in TExpGenFn< T_ansatzsp, T_testsp, T_value >, THelmholtzSLPGenFn< T_ansatzsp, T_testsp, T_value >, THelmholtzDLPGenFn< T_ansatzsp, T_testsp, T_value >, TLaplaceSLPGenFn< T_ansatzsp, T_testsp, T_value >, and TLaplaceDLPGenFn< T_ansatzsp, T_testsp, T_value >.

integrate_dx()

template<typename T_value >

virtual void integrate_dx ( const TIndexSet &  is, const std::vector< T3Point > &  pts, BLAS::Matrix< value_t > &  matrix  ) const

pure virtual

Evaluate \( \int \phi_i(x) D_x \gamma(x, y_{l}) dx\) for i ∈ is and points \( y_{l} \) defined by pts. Store results in matrix at index (i,l).

Implemented in TPermHCAGeneratorFn< T_value >.

integrate_dy()

template<typename T_value >

virtual void integrate_dy ( const TIndexSet &  is, const std::vector< T3Point > &  pts, BLAS::Matrix< value_t > &  matrix  ) const

pure virtual

Evaluate \( \int \phi_j(y) D_y \gamma(x_{l}, y) dy\) for j ∈ is and points \( x_{l} \) defined by pts. Store results in matrix at index (j,l).

Implemented in TPermHCAGeneratorFn< T_value >.