### Abstract

This paper is concerned with robustness problems in computational geometry. To solve geometric problems, numerical computations by floating-point arithmetic are preferred in terms of computational performance. However, when the rounding errors of floating-point computations accumulate, meaningless results of the problems may be obtained. It is called robustness problem in computational geometry. Recently, several verified algorithms for a two-dimensional orientation problem have been developed. By applying these algorithms, we develop an algorithm which overcomes this problem. Finally, we present numerical examples for a convex hull for a set of points on two-dimensional spaces to illustrate an efficiency of the proposed algorithm.

Original language | English |
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Publication status | Published - 2009 Jan 1 |

Event | Asia Simulation Conference 2009, JSST 2009 - Shiga, Japan Duration: 2009 Oct 7 → 2009 Oct 9 |

### Conference

Conference | Asia Simulation Conference 2009, JSST 2009 |
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Country | Japan |

City | Shiga |

Period | 09/10/7 → 09/10/9 |

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### Keywords

- Accurate numerical computation
- Computational geometry

### ASJC Scopus subject areas

- Modelling and Simulation

### Cite this

*Robustness problems and verified computations for computational geometry*. Paper presented at Asia Simulation Conference 2009, JSST 2009, Shiga, Japan.