conjugate_gradient.sql_in File Reference

SQL function computing Conjugate Gradient. More...

Functions
float []	conjugate_gradient (text matrix, text val_id, text row_id, float[] b, float precision_limit, int verbosity)
	Compute conjugate gradient. More...
float []	conjugate_gradient (text matrix, text val_id, text row_id, float[] b, float precision_limit)

Detailed Description

Date

March 2011

Function Documentation

conjugate_gradient() [1/2]

float [] conjugate_gradient	(	text	matrix,
		text	val_id,
		text	row_id,
		float []	b,
		float	precision_limit,
		int	verbosity
	)

Parameters

matrix	Name of the table containing argument matrix A
val_id	Name of the column contains row values
row_id	Name of the column contains row number
b	Array containing values of b
precision_limit	Precision threshold after which process will terminate
verbosity	Verbose flag (0 = false, 1 = true)

Returns

Array containing values of x

conjugate_gradient() [2/2]

float [] conjugate_gradient	(	text	matrix,
		text	val_id,
		text	row_id,
		float []	b,
		float	precision_limit
	)