Info : T is actually a triangulation -list of triangles-, in which each index corresponding to the row index of a vertex in another list -a vertices list-, it is a widely used technique used to store and write triangular meshes in mesh processing. Here below the example is a tetrahedron -4 facets-.
Angle of triangle
Back to basics 9 - Indexed References
Determine Whether an array is empty
Sum the Digits of a Number
Find triangles from edge
Query edges list
Remove duplicated vertices
Find neighbor triangle indices
Find a common vertex
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