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lis_solver...esidualnorm(3)  Lis Library Functions lis_solver...esidualnorm(3)

NAME
       lis_solver_get_residualnorm - calculate the relative residual norm from
       the solution

SYNOPSIS
       #include	"lis.h"

       LIS_INT	lis_solver_get_residualnorm(LIS_SOLVER solver, LIS_INT *resid-
       ual);

DESCRIPTION
       Calculate the relative residual norm ||b	- Ax||_2/||b||_2 from the  so-
       lution x.

INPUT
       solver The solver

OUTPUT
       residual
	      The relative residual norm ||b - Ax||_2/||b||_2

EXIT STATUS
       The following exit values are returned:

       0      The process is normally terminated

       unspecified
	      An error occurred

SEE ALSO
       lis(3)

       http://www.ssisc.org/lis/

Man Page			  6 Sep	2012	   lis_solver...esidualnorm(3)

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