Abstract
Summary Given a convex set F in the plane with a sufficiently smooth boundary we try to approximate it by polygons in the following way. Using some specified sampling procedure we pick out n points on the boundary. Through each such point we draw the tangent. Consider the polygon F*n spanned by all these tangents. If n is large we would expect F*n to be close to F. Measuring the deviation by the area of F*n — F we will derive an asymptotic expression for this area when n becomes large. This expression can be used to choose the optimum sampling procedure in the sense of smallest asymptotic deviation. The problem arose from a problem of statistical approximation in propositional calculus, see section 1.
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