parameters for polynomial filter More...

#include <struct.h>

Data Fields
input to find_pol
int	max_deg

int	min_deg

int	damping

double	thresh_ext

double	thresh_int

double	tol

double	intvtol

output from find_pol
int	type

double *	mu

double	cc

double	dd

double	gam

double	bar

both input to and output from find_pol
int	deg

Detailed Description

parameters for polynomial filter

default values are set by set_pol_def

Definition at line 45 of file struct.h.

Field Documentation

double _polparams::bar

p(theta)>=bar indicates a wanted Ritz value

Definition at line 65 of file struct.h.

Referenced by ChebLanNr(), ChebLanTr(), ChebSI(), chext(), evsl_find_pol(), find_pol(), and main().

double _polparams::cc

center of interval - used by chebAv

Definition at line 62 of file struct.h.

Referenced by ChebAv(), and find_pol().

int _polparams::damping

0 = no damping, 1 = Jackson, 2 = Lanczos

Definition at line 50 of file struct.h.

Referenced by evsl_find_pol(), find_pol(), main(), and set_pol_def().

double _polparams::dd

half-width of interval - used by chebAv

Definition at line 63 of file struct.h.

Referenced by ChebAv(), and find_pol().

int _polparams::deg

if deg == 0 before calling find_deg then the polynomial degree is computed internally. Otherwise it is of degree deg. [and thresh_ext and thresh_int are not used] default value=0, set by call to set_pol_def

Definition at line 70 of file struct.h.

Referenced by ChebAv(), ChebLanNr(), ChebSI(), chext(), evsl_find_pol(), find_pol(), main(), and set_pol_def().

double _polparams::gam

center of delta function used

Definition at line 64 of file struct.h.

Referenced by ChebLanNr(), ChebLanTr(), ChebSI(), chext(), evsl_find_pol(), find_pol(), and main().

double _polparams::intvtol

cut-off point of middle interval

Definition at line 54 of file struct.h.

Referenced by find_pol(), and set_pol_def().

int _polparams::max_deg

max allowed degree