From b1c20547a9f1d875225cbfcdd1bb9ec84057bfed Mon Sep 17 00:00:00 2001 From: Wolfgang Bangerth Date: Sun, 9 Dec 2007 19:18:08 +0000 Subject: [PATCH] Update a comment. git-svn-id: https://svn.dealii.org/trunk@15584 0785d39b-7218-0410-832d-ea1e28bc413d --- deal.II/lac/include/lac/block_matrix_array.h | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/deal.II/lac/include/lac/block_matrix_array.h b/deal.II/lac/include/lac/block_matrix_array.h index b27977500f..be8d81f029 100644 --- a/deal.II/lac/include/lac/block_matrix_array.h +++ b/deal.II/lac/include/lac/block_matrix_array.h @@ -2,7 +2,7 @@ // $Id$ // Version: $Name$ // -// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006 by the deal.II authors +// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007 by the deal.II authors // // This file is subject to QPL and may not be distributed // without copyright and license information. Please refer @@ -252,9 +252,10 @@ class BlockMatrixArray : public Subscriptor const BlockVector& v) const; /** - * Square of the matrix norm of a - * vector (at least for a - * symmetric matrix). + * Compute $u^T M u$. This is the square + * of the norm induced by the matrix + * assuming the matrix is symmetric + * positive definitive. */ number matrix_norm_square (const BlockVector& u) const; -- 2.39.5