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-.
Find the two most distant points
Back to basics 22 - Rotate a matrix
Basic arrays operations.
Basics: counting digits of a number irrespective of the sign
Find a common edge
Remove duplicated vertices
Find neighbor triangle indices
Find triangles from edge
Remove duplicated triangles
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