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Question: Weyl Scalars for the Kerr metric.

Question:Weyl Scalars for the Kerr metric.

RK1 160 Maple
physics tetrads metricsearch petrovtype
May 30 2023
2

I am trying to calculate the Weyl Scalars for the Kerr metric and I get an error

"Error, (in simplify/recurse) numeric exception: division by zero"

restart;
with(Physics);
with(Tetrads);
g_[[5, 29, 1]];
WeylScalars(TransformTetrad(canonicalform));

When I try: 
Weyl[scalars];

It gives me the weyl scalars  but they dont look correct because some of the scalars are supposed to be zero for a type D spacetime.
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