Error Control in Polytope Computations
Error Control in Polytope Computations
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多面体计算中的误差控制
DOI:
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发表时间:
2002
期刊:
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通讯作者:
S. Veres
中科院分区:
文献类型:
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作者:
S. Veres
This paper presents solutions for numerical computation on convex hulls; computational algorithms that ensure logical consistency and accuracy are proposed. A complete numerical error analysis is presented. It is shown that a global error bound for vertex-facet adjacency does not exist under logically consistent procedures. To cope with practical requirements, vertex preconditioned polytope computations are introduced using point and hyperplane adjustments. A global bound on vertex-facet adjacency error is affected by the global bound on vertices; formulas are given for a conservative choice of global error bounds.