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author | allen <allen@6a3ddf76-46e1-4315-99d9-bc56cac1ef84> | 1999-04-01 18:10:24 +0000 |
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committer | allen <allen@6a3ddf76-46e1-4315-99d9-bc56cac1ef84> | 1999-04-01 18:10:24 +0000 |
commit | 7bfa8222c63007aa4bd9c2b518ae2fc62adf9020 (patch) | |
tree | 5dc674bd5fe7f5c29cd516676988531c7402de34 /doc | |
parent | 2e3b8edde7db995fe5f2f66aec79b2fdb86e94e1 (diff) |
This is going to be an example of how to write thorn documentation, at
the moment it is an example of how not to write thorn documentation
git-svn-id: http://svn.einsteintoolkit.org/cactus/EinsteinInitialData/IDAnalyticBH/trunk@13 6a3ddf76-46e1-4315-99d9-bc56cac1ef84
Diffstat (limited to 'doc')
-rw-r--r-- | doc/ThornGuide.tex | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/doc/ThornGuide.tex b/doc/ThornGuide.tex new file mode 100644 index 0000000..ea66490 --- /dev/null +++ b/doc/ThornGuide.tex @@ -0,0 +1,79 @@ +\documentstyle{report} +%\def{\parameter{#1}}{{\it #1}} + +\begin{document} + +\chapter{IDAnalyticBH} + +\section{Introduction} + +\subsection{Purpose of Thorn} + +Thorn IDAnalyticBH provides analytic initial data for vacuum black +hole spacetimes. Initial data is provided for the 3-metric, extrinsic +curvature, and if appropriate the conformal factor and it's spatial +derivatives. The current initial data sets are for a single (Schwarzschild) +black hole in isotropic coordinates, up to four Brill-Lindquist black +holes, and any number of Misner-type black holes. + +\subsection{Technical Specification} + +\begin{itemize} + +\item{Implements} einsteinID +\item{Inherits from} einstein +\item{Tested with thorns} Einstein + +\end{itemize} + +\section{Theoretical Background} + + +\section{Algorithmic and Implementation Details} + +This thorn uses no special numerical methods, however two points +are worth noting + +\begin{enumerate} + +\item{} The solution for Misner is obtained by summing a sequence + +\item{} The spatial derivatives of the conformal metric (when required) + are calculated accurately using finite differencing of the + exact solution by a very small spacing + +\end{enumerate} + +\section{Using the Thorn} + +This thorn can provide either the physical metric (use\_conformal=''no'') +or the conformal metric and a conformal factor (and its spatial derivatives) +(use\_conformal=''yes''). In general, the option use\_conformal=''yes'' should +be used, since ????. + +\section{Parameters} + +\subsection{List of all Parameters} + +\subsection{Discussion} + +\section{Interaction with Other Thorns} + +It is still to be decided how initial data should be supplied to +for systems of evolution equations which use more or different +variables to those in the einstein implementation + +\section{Future Development} + +Initial data sets which are missing from this thorn include + +\begin{itemize} + +\item{} Boosted single black hole +\item{} Single black hole in harmonic spatial coordinates +\item{} Single black hole in Eddington-Finkelstein coordinates + +\end{itemize} + + +\end{document} |