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Diffstat (limited to 'doc/documentation.tex')
| -rw-r--r-- | doc/documentation.tex | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/doc/documentation.tex b/doc/documentation.tex index f820382..49731f9 100644 --- a/doc/documentation.tex +++ b/doc/documentation.tex @@ -32,19 +32,30 @@ solved numerically once the function $q$ has been specified. The initial data is also assumed to be time-symmetric, so the momentum constraints are trivially satisfied. +% [[ DPR: The code does not use these two different initial_data +% keywords, but the axisym parameter instead. It should probably use +% the two different initial_data values. I have changed the doc below +% to correspond with the current code: ]] + The thorn is activated by choosing the CactusEinstein/ADMBase parameter -``initial\_data'' in one of the following two ways: +``initial\_data'' to be: +%in one of the following two ways: \begin{itemize} -\item initial\_data = ``brilldata'': Axisymmetric Brill wave initial data - (but calculated in a cartesian grid!). +\item initial\_data = ``brilldata'': %Axisymmetric +Brill wave initial data +% (but calculated in a cartesian grid!). -\item initial\_data = ``brilldata3D'': Brill wave initial data with an - angular dependency. +%\item initial\_data = ``brilldata3D'': Brill wave initial data with an +% angular dependency. \end{itemize} +To choose axisymmetric data, set the parameter {\tt axisym} to true +(the default). Note that the data is computed on a cartesian grid in +any event. {\tt axisym = "no"} adds an angular dependence factor, +which is detailed below. \section{Parameters for the thorn} |