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-rw-r--r--m/WeylScal4.m6
1 files changed, 6 insertions, 0 deletions
diff --git a/m/WeylScal4.m b/m/WeylScal4.m
index ac86d90..fab4589 100644
--- a/m/WeylScal4.m
+++ b/m/WeylScal4.m
@@ -134,12 +134,18 @@ PsisCalc[fdOrder_, PD_] :=
Compute the local tetrad
****************************************************************************)
+ (* azmuthal *)
va1 -> -ymoved, va2 -> xmoved+offset, va3 -> 0,
+
+ (* radial *)
vb1 -> xmoved+offset, vb2 -> ymoved, vb3 -> zmoved,
+
+ (* polar *)
vc[ua] -> Sqrt[detg] gInv[ua,ud] Eps[ld,lb,lc] va[ub] vb[uc],
(* Orthonormalize using Gram-Schmidt*)
+ (* Orthonormalize in the order phi, r, theta *)
wa[ua] -> va[ua],
omega11 -> wa[ua] wa[ub] g[la,lb],
ea[ua] -> wa[ua] / Sqrt[omega11],