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Proceedings of the 7th annual conference on Computer graphics and interactive techniques - SIGGRAPH '80, 1980
Most man-made objects can be closely approximated by bodies whose surfaces are composed of portions of second-order (quadric) surfaces. These surfaces include elliptic, hyperbolic, and parabolic cylinders, as well as quadric cones, paraboloids, hyperboloids, ellipsoids, and pairs of planes.
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Most man-made objects can be closely approximated by bodies whose surfaces are composed of portions of second-order (quadric) surfaces. These surfaces include elliptic, hyperbolic, and parabolic cylinders, as well as quadric cones, paraboloids, hyperboloids, ellipsoids, and pairs of planes.
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The Mathematical Gazette, 1967
The problem of arranging dominoes with like numbers in groups of four was proposed by Édouard Lucas. Although Lucas published only symmetrical solutions for the double-six set, generalizations of the problem have led to some interesting results. For the double-six set, it has been shown there are hundreds of shapes meeting the requirement that like ...
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The problem of arranging dominoes with like numbers in groups of four was proposed by Édouard Lucas. Although Lucas published only symmetrical solutions for the double-six set, generalizations of the problem have led to some interesting results. For the double-six set, it has been shown there are hundreds of shapes meeting the requirement that like ...
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1997
Abstract It is surprising, therefore, to find that Roald Hoffmann describes himself as an anti-reductionist. He and his collaborator, Robert B. Woodward, did after all win the Nobel prize for applying quantum mechanics to chemistry. It is also surprising, though perhaps it shouldn’t be, that a distinguished chemist is also an established
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Abstract It is surprising, therefore, to find that Roald Hoffmann describes himself as an anti-reductionist. He and his collaborator, Robert B. Woodward, did after all win the Nobel prize for applying quantum mechanics to chemistry. It is also surprising, though perhaps it shouldn’t be, that a distinguished chemist is also an established
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