From: Wolfgang Bangerth <bangerth@math.tamu.edu>
Date: Mon, 30 Oct 2006 16:11:56 +0000 (+0000)
Subject: Link to step-21
X-Git-Tag: v8.0.0~10846
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3c508bce026d0ee7071781ed253817bcfcc9a111;p=dealii.git

Link to step-21

git-svn-id: https://svn.dealii.org/trunk@14128 0785d39b-7218-0410-832d-ea1e28bc413d
---

diff --git a/deal.II/examples/step-23/doc/intro.dox b/deal.II/examples/step-23/doc/intro.dox
index de59cf8f97..b11f5ae957 100644
--- a/deal.II/examples/step-23/doc/intro.dox
+++ b/deal.II/examples/step-23/doc/intro.dox
@@ -2,7 +2,8 @@
 <h1>Introduction</h1>
 
 This is the first of a number of tutorial programs that will finally
-cover time-dependent problems. In particular, this program introduces
+cover "real" time-dependent problems, not the slightly odd form of time
+dependence found in @ref step_18 "step-18" or the DAE model of @ref step_21 "step-21". In particular, this program introduces
 the wave equation in a bounded domain. Later, @ref step_24 "step-24"
 will consider an example of absorbing boundary conditions, and @ref
 step_25 "step-25" a kind of nonlinear wave equation producing