From 71520ae9960f526e4829e04dbe205a16f082bc55 Mon Sep 17 00:00:00 2001 From: wolf Date: Wed, 22 May 2002 07:25:11 +0000 Subject: [PATCH] Fix up. git-svn-id: https://svn.dealii.org/trunk@5872 0785d39b-7218-0410-832d-ea1e28bc413d --- .../chapter-2.step-by-step/step-14.data/results.html | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/deal.II/doc/tutorial/chapter-2.step-by-step/step-14.data/results.html b/deal.II/doc/tutorial/chapter-2.step-by-step/step-14.data/results.html index 12ccd786bf..a6983fbffd 100644 --- a/deal.II/doc/tutorial/chapter-2.step-by-step/step-14.data/results.html +++ b/deal.II/doc/tutorial/chapter-2.step-by-step/step-14.data/results.html @@ -385,7 +385,9 @@ see a comparison of true and estimated error: After an initial phase where the true error changes its sign, the -estimated error matches it quite well, again. +estimated error matches it quite well, again. Also note the dramatic +improvement in the error when using the estimated error to correct the +computed value of J(uh).

@@ -493,7 +495,10 @@ stop computations when we are satisfied with the accuracy. Using more traditional approaches, it is very difficult to get accurate estimates for arbitrary quantities, except for, maybe, the error in the energy norm, and we will then have no guarantee that the result we computed -satisfies any requirements on its accuracy. +satisfies any requirements on its accuracy. Also, as was shown for the +evaluation of point values and derivatives, the error estimate can be +used to extrapolate the results, yielding much higher accuracy in the +quantity we want to know.

-- 2.39.5