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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
#include "ADM_Derivative.h"
if (spatial_order.eq.2) then
DZDCG_DZDCGXX = ADM_DZ_2(gxx,i,j,k)
DZDCG_DZDCGXY = ADM_DZ_2(gxy,i,j,k)
DZDCG_DZDCGXZ = ADM_DZ_2(gxz,i,j,k)
DZDCG_DZDCGYY = ADM_DZ_2(gyy,i,j,k)
DZDCG_DZDCGYZ = ADM_DZ_2(gyz,i,j,k)
DZDCG_DZDCGZZ = ADM_DZ_2(gzz,i,j,k)
else
DZDCG_DZDCGXX = ADM_DZ_4(gxx,i,j,k)
DZDCG_DZDCGXY = ADM_DZ_4(gxy,i,j,k)
DZDCG_DZDCGXZ = ADM_DZ_4(gxz,i,j,k)
DZDCG_DZDCGYY = ADM_DZ_4(gyy,i,j,k)
DZDCG_DZDCGYZ = ADM_DZ_4(gyz,i,j,k)
DZDCG_DZDCGZZ = ADM_DZ_4(gzz,i,j,k)
end if
#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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