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A logistic approximation to the cumulative normal distribution
normal distribution logistic approximation minimax criteria
2009/8/25
This paper develops a logistic approximation to the cumulative normal distribution. Although the literature contains a vast collection of approximate functions for the normal distribution, they are ve...
Inscribed Approximation based Adaptive Tessellation of Catmull-Clark Subdivision Surfaces
subdivision Catmull-Clark surfaces tessellation surface evaluation
2009/8/19
Catmull-Clark subdivision scheme provides a powerful method for building smooth and complex surfaces. But the number of faces in the uniformly refined meshes increases exponentially with respect to su...