DihedralAngle

DihedralAngle[{p1, p2}, {v, w}] gives the angle between two half-planes bounded by the line through p1 and p2 and extended in the direction v and w.

Examples

Calculate a dihedral angle:

DihedralAngle[{{0, 0, 0}, {0, 0, 1}}, {{1, 0, 0}, {0, 1, 0}}]
(* Pi/2 *)

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