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/*@@
@header DZDCG_guts.h
@date Jun 98
@author Gabrielle Allen
@desc
Macro to calculate the first derivatives of the
conformal metric with respect to z
The macro is defined in terms of standard variables in
Requires: lower conformal metric at k+1,k-1 ; dz0
Provides: derivative of lower conformal metric wrt z
@seefile DZDCG_declare.h
@enddesc
@@*/
#ifndef DZDCG_GUTS
#define DZDCG_GUTS
#ifdef FCODE
DZDCG_OO2DZ = 1D0/(2D0*DZDCG_DZ)
DZDCG_DZDCGXX = DZDCG_OO2DZ*(DZDCG_GXX_KP - DZDCG_GXX_KM)
DZDCG_DZDCGXY = DZDCG_OO2DZ*(DZDCG_GXY_KP - DZDCG_GXY_KM)
DZDCG_DZDCGXZ = DZDCG_OO2DZ*(DZDCG_GXZ_KP - DZDCG_GXZ_KM)
DZDCG_DZDCGYY = DZDCG_OO2DZ*(DZDCG_GYY_KP - DZDCG_GYY_KM)
DZDCG_DZDCGYZ = DZDCG_OO2DZ*(DZDCG_GYZ_KP - DZDCG_GYZ_KM)
DZDCG_DZDCGZZ = DZDCG_OO2DZ*(DZDCG_GZZ_KP - DZDCG_GZZ_KM)
#endif
#ifdef CCODE
DZDCG_OO2DZ = 1/(2*cctkGH->cctk_delta_space[2]);
DZDCG_DZDCGXX = DZDCG_OO2DZ*(DZDCG_GXX_KP - DZDCG_GXX_KM);
DZDCG_DZDCGXY = DZDCG_OO2DZ*(DZDCG_GXY_KP - DZDCG_GXY_KM);
DZDCG_DZDCGXZ = DZDCG_OO2DZ*(DZDCG_GXZ_KP - DZDCG_GXZ_KM);
DZDCG_DZDCGYY = DZDCG_OO2DZ*(DZDCG_GYY_KP - DZDCG_GYY_KM);
DZDCG_DZDCGYZ = DZDCG_OO2DZ*(DZDCG_GYZ_KP - DZDCG_GYZ_KM);
DZDCG_DZDCGZZ = DZDCG_OO2DZ*(DZDCG_GZZ_KP - DZDCG_GZZ_KM);
#endif
#endif
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