diff options
Diffstat (limited to 'src/macro/DXDK_guts.h')
| -rw-r--r-- | src/macro/DXDK_guts.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/src/macro/DXDK_guts.h b/src/macro/DXDK_guts.h new file mode 100644 index 0000000..c547dae --- /dev/null +++ b/src/macro/DXDK_guts.h @@ -0,0 +1,40 @@ +/*@@ + @header DXDK_guts.h + @date Jul 98 + @author Gabrielle Allen + @desc + Macro to calculate the first derivatives of the + extrinsic curvature with respect to x + @enddesc +@@*/ + +#ifndef DXDK_GUTS +#define DXDK_GUTS + +#ifdef FCODE + + DXDK_OO2DX = 1D0/(2D0*DXDK_DX) + + DXDK_DXDKXX = DXDK_OO2DX*(DXDK_KXX_IP - DXDK_KXX_IM) + DXDK_DXDKXY = DXDK_OO2DX*(DXDK_KXY_IP - DXDK_KXY_IM) + DXDK_DXDKXZ = DXDK_OO2DX*(DXDK_KXZ_IP - DXDK_KXZ_IM) + DXDK_DXDKYY = DXDK_OO2DX*(DXDK_KYY_IP - DXDK_KYY_IM) + DXDK_DXDKYZ = DXDK_OO2DX*(DXDK_KYZ_IP - DXDK_KYZ_IM) + DXDK_DXDKZZ = DXDK_OO2DX*(DXDK_KZZ_IP - DXDK_KZZ_IM) + +#endif + +#ifdef CCODE + + DXDK_OO2DX = 1/(2*GH->dx0); + + DXDK_DXDKXX = DXDK_OO2DX*(DXDK_KXX_IP - DXDK_KXX_IM); + DXDK_DXDKXY = DXDK_OO2DX*(DXDK_KXY_IP - DXDK_KXY_IM); + DXDK_DXDKXZ = DXDK_OO2DX*(DXDK_KXZ_IP - DXDK_KXZ_IM); + DXDK_DXDKYY = DXDK_OO2DX*(DXDK_KYY_IP - DXDK_KYY_IM); + DXDK_DXDKYZ = DXDK_OO2DX*(DXDK_KYZ_IP - DXDK_KYZ_IM); + DXDK_DXDKZZ = DXDK_OO2DX*(DXDK_KZZ_IP - DXDK_KZZ_IM); + +#endif + +#endif |