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/*@@
@header DXDG_guts.h
@date Jun 98
@author Gabrielle Allen
@desc
Macro to calculate the first derivatives of the
physical metric with respect to x
The macro is defined in terms of standard variables in
@seefile DXDG_declare.h
@enddesc
@@*/
#ifndef DXDG_GUTS
#define DXDG_GUTS
#include "DXDCG_guts.h"
#ifdef FCODE
IF (conformal_state .eq. 0) THEN
DXDG_PSI4 = 1
DXDG_FAC = 0
ELSE
DXDG_PSI4 = DXDG_PSI**4
DXDG_FAC = 4*DXDG_PSI4*DXDG_DXDPSI_O_PSI
ENDIF
DXDG_DXDGXX = DXDCG_DXDCGXX*DXDG_PSI4 + DXDG_FAC*DXDG_GXX
DXDG_DXDGXY = DXDCG_DXDCGXY*DXDG_PSI4 + DXDG_FAC*DXDG_GXY
DXDG_DXDGXZ = DXDCG_DXDCGXZ*DXDG_PSI4 + DXDG_FAC*DXDG_GXZ
DXDG_DXDGYY = DXDCG_DXDCGYY*DXDG_PSI4 + DXDG_FAC*DXDG_GYY
DXDG_DXDGYZ = DXDCG_DXDCGYZ*DXDG_PSI4 + DXDG_FAC*DXDG_GYZ
DXDG_DXDGZZ = DXDCG_DXDCGZZ*DXDG_PSI4 + DXDG_FAC*DXDG_GZZ
#endif
#ifdef CCODE
DXDG_PSI4 = ((*conformal_state == 0)?1:DXDG_PSI*DXDG_PSI*DXDG_PSI*DXDG_PSI);
DXDG_FAC = ((*conformal_state == 0)?0:4*DXDG_PSI4*DXDG_DXDPSI_O_PSI);
DXDG_DXDGXX = DXDCG_DXDCGXX*DXDG_PSI4 + DXDG_FAC*DXDG_GXX;
DXDG_DXDGXY = DXDCG_DXDCGXY*DXDG_PSI4 + DXDG_FAC*DXDG_GXY;
DXDG_DXDGXZ = DXDCG_DXDCGXZ*DXDG_PSI4 + DXDG_FAC*DXDG_GXZ;
DXDG_DXDGYY = DXDCG_DXDCGYY*DXDG_PSI4 + DXDG_FAC*DXDG_GYY;
DXDG_DXDGYZ = DXDCG_DXDCGYZ*DXDG_PSI4 + DXDG_FAC*DXDG_GYZ;
DXDG_DXDGZZ = DXDCG_DXDCGZZ*DXDG_PSI4 + DXDG_FAC*DXDG_GZZ;
#endif
#endif
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