Extract calculates the ADM mass

Closes Cactus/1193

Will also soon be in documentation.


git-svn-id: http://svn.einsteintoolkit.org/cactus/EinsteinAnalysis/Extract/trunk@63 5301f0c2-dbc4-4cee-b2f5-8d7afba4d129

1 files changed, 2 insertions, 0 deletions

diff --git a/README b/README
index bca1749..b95379c 100644
--- a/README
+++ b/README
@@ -8,4 +8,6 @@ Purpose of the thorn:
 Calculate gauge invariant waveforms, using the Moncrief formulism,
 for cases when the spacetime approximates spherical symmetry
 
+Calculate other quantities on a surface, such as ADM mass, momentums,
+and spins.