title: Improvement of the termination criterion for subdivision of the rational Bézier curves.
abstract: By using some elementary inequalities, authors in this paper makes further improvement for estimating the heights of Bézier curve and rational Bézier curve. And the termination criterion for subdivision of the rational Bézier curve is also improved. The conclusion of the extreme value problem is thus further confirmed.
authors.affiliation: Institute of Computer Images and Graphics, Zhejiang University, Hangzhou 310027, China. renjiang@mail.hz.zj.cn
authors.forename: Ren-jiang
authors.initials: RJ
authors.lastname: Zhang
authors.forename: Guo-jin
authors.initials: GJ
authors.lastname: Wang