polygon_properties_test, a MATLAB program which calls polygon_properties() to compute properties of an arbitrary polygon in the plane, defined by a sequence of vertices.
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polygon_properties, a MATLAB library which computes properties of an arbitrary polygon in the plane, defined by a sequence of vertices, including interior angles, area, centroid, containment of a point, convexity, diameter, distance to a point, inradius, lattice area, nearest point in set, outradius, uniform sampling.