From e2289bc020e59ad1c9b8ef1385c840047f357583 Mon Sep 17 00:00:00 2001 From: schnetter Date: Mon, 27 Feb 2006 00:47:56 +0000 Subject: Document how to specify that a grid variable is given in a global tensor basis. git-svn-id: http://svn.cactuscode.org/arrangements/CactusBase/SymBase/trunk@32 906471b6-c639-44d1-9ea0-3e3d6879f074 --- doc/documentation.tex | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/doc/documentation.tex b/doc/documentation.tex index ef80e9e..4ce0fb3 100644 --- a/doc/documentation.tex +++ b/doc/documentation.tex @@ -588,6 +588,13 @@ tensor specials are \gamma_{ij}$. \end{description} +By default, the basis with respect to which the tensor components are +given is supposed to be the (local) coordinate system given by the +grid, i.e., the coordinate directions are the ``natural'' directions +of the grid. It is possible to specify a different basis by declaring +a \emph{tensor basis}, which is the name of a grid function group +containing the coordinate system. + \subsection{Example Tensor Type Declarations} From CactusWave/WaveToy: -- cgit v1.2.3