A little more text

git-svn-id: http://svn.cactuscode.org/arrangements/CactusBase/Time/trunk@38 5633253d-7678-4964-a54d-f87795f8ee59

1 files changed, 25 insertions, 2 deletions

diff --git a/doc/documentation.tex b/doc/documentation.tex
index 518f231..1411419 100644
--- a/doc/documentation.tex
+++ b/doc/documentation.tex
@@ -18,8 +18,8 @@ a wave speed.
 
 Thorn {\tt Time} uses one of four methods to decide on the timestep
 to be used for the simulation. The method is chosen using the
-keyword parameter {\tt time::timestep\_method}. (Note: In releases Beta 8 and 
-earlier the parameter used was {\tt time::courant\_method}
+keyword parameter {\tt time::timestep\_method}. 
+
 \begin{itemize}
 
 \item{} {\tt time::timestep\_method = ``given''} The timestep is fixed to the
@@ -68,8 +68,31 @@ $$
 \Delta t \le \mbox{min}(\Delta x^i)/\mbox{wave speed}/\sqrt(\mbox{dim})
 $$
 
+\section{Examples}
+
+{\bf Fixed Value Timestep}
+
+{\tt
+\begin{verbatim}
+time::timestep_method = ``given''
+time::timestep        = 0.1
+\end{verbatim}
+}
+
+
+{\bf Calculate Static Timestep Based on Grid Spacings}
 
+The following parameters set the timestep to be 0.25
 
+{\tt
+\begin{verbatim}
+grid::dx    = 0.5
+grid::dy    = 1.0
+grid::dz    = 1.0
+time::timestep_method = ``courant_static''
+time::dtfac = 0.5
+\end{verbatim}
+}
 
 % Automatically created from the ccl files by using gmake thorndoc
 \include{interface}