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Question: Putting a metric tensor in maple under polar coordinates

Question:Putting a metric tensor in maple under polar coordinates

guru kido 60 Maple 2018
physics tensor metric differentialgeometry
October 19 2018
4

So I currently have:
with(DifferentialGeometry); with(Tensor);
DGsetup([r, theta], pol);
g1 := evalDG(drdr+r^2d(theta)d(theta))
C1 := Christoffel(g1);
However its coming back saying that g1 is not of metric form, am i missing something? Thanks
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