]> https://gitweb.dealii.org/ - dealii-svn.git/commitdiff
Fix reference
authorbangerth <bangerth@0785d39b-7218-0410-832d-ea1e28bc413d>
Mon, 11 Sep 2006 16:02:50 +0000 (16:02 +0000)
committerbangerth <bangerth@0785d39b-7218-0410-832d-ea1e28bc413d>
Mon, 11 Sep 2006 16:02:50 +0000 (16:02 +0000)
git-svn-id: https://svn.dealii.org/trunk@13895 0785d39b-7218-0410-832d-ea1e28bc413d

deal.II/examples/step-23/doc/intro.dox

index 1fca1cf284e7789d5936444a10c99724b58e0543..3e67f6594b02ad4ad1e83fe479585409166ac330 100644 (file)
@@ -367,7 +367,11 @@ restriction. Implicit schemes do not have this restriction for stability, but
 they become inaccurate if the time step is too large.
 
 This condition was first recognized by Courant, Friedrichs, and Levy &mdash;
-in 1943, long before computers become available for numerical computations!
+in 1928, long before computers become available for numerical
+computations! (This result appeared in R. Courant, K. Friedrichs and
+H. Lewy: <i>&Uuml;ber die partiellen Differenzengleichungen der
+mathematischen Physik</i>, Mathematische Annalen, vol. 100, no. 1,
+pages 32-74, 1928.)
 Consequently, the condition on the time step is most frequently just referred
 to as the <i>CFL</i> condition. In the program, we will refine a square
 $[-1,1]$ seven times uniformly, giving a mesh size of $h=\frac 1{64}$, which

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