Otfried Cheong
Otfried Cheong (; formerly Otfried Schwarzkopf) is a German computational geometer working in South Korea at KAIST. He is known as one of the authors of the widely used computational geometry textbook ''Computational Geometry: Algorithms and Applications'' (with Mark de Berg, Marc van Kreveld, and Mark Overmars) and as the developer of Ipe, a vector graphics editor. Provided by Wikipedia-
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