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+\documentclass{article}
+\begin{document}
+
+\title{Time}
+\author{Gabrielle Allen}
+\date{1999}
+\maketitle
+
+\abstract{Calculates the timestep used for an evolution}
+
+\section{Purpose}
+
+This, currently very simple, thorn provides a routine for calculating
+the timestep for an evolution based on the spatial Cartesian grid spacing.
+This thorn will be extended in the future to include features like
+a dynamic Courant condition. The thorn works for up to 3 spatial 
+dimensions.
+
+\section{Comments}
+
+The timestep, which is passed into the Cactus variable {\tt cctk\_delta\_time},
+ is calculated by the algorithm
+$$
+\Delta t = \mbox{\tt dtfac} * \mbox{min}(\Delta x^i)
+$$
+
+
+
+
+
+% Automatically created from the ccl files by using gmake thorndoc
+\include{interface}
+\include{param}
+\include{schedule}
+
+\end{document}