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Man Pages
lis_solver_get_residualnorm(3f) Lis Library Functions lis_solver_get_residualnorm(3f)

lis_solver_get_residualnorm - calculate the relative residual norm from the solution

subroutine lis_solver_get_residualnorm(LIS_SOLVER solver, LIS_INTEGER *residual, LIS_INTEGER ierr);

Calculate the relative residual norm ||b - Ax||_2/||b||_2 from the solution x.

solver
The solver

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

lis(3)

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

6 Sep 2012 Man Page

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