[Commits] [svn:einsteintoolkit] GRHydro/trunk/src/ (Rev. 151)

[cott at tapir.caltech.edu]

User: cott
Date: 2010/08/26 03:06 PM

Added:
 /trunk/src/
  GRHydro_Macros.h

Log:
 * add a source file containing macro definitions

File Changes:

Directory: /trunk/src/
======================

File [added]: GRHydro_Macros.h
Delta lines: +3 -0
===================================================================
--- trunk/src/GRHydro_Macros.h	                        (rev 0)
+++ trunk/src/GRHydro_Macros.h	2010-08-26 20:06:30 UTC (rev 151)
@@ -0,0 +1,3 @@
+#define SPATIAL_DETERMINANT(gxx,gxy,gxz,gyy,gyz,gzz) \
+  (-(gxz)**2*(gyy) + 2*(gxy)*(gxz)*(gyz) - (gxx)*(gyz)**2 - (gxy)**2*(gzz) \
+   + (gxx)*(gyy)*(gzz))