| 摘要: |
| 主要讨论 WSGB 曲线的两种不同的降阶算法，分别为扰动法和最佳一致逼近法，给出了两种方法所得降阶曲线与原曲线的逼近误差与相对逼近误差，并通过实例对两种降阶算法进行了比较． |
| 关键词: 广义 Ball 曲线 WSGB 曲线 降阶 最佳一致逼近 扰动法 |
| DOI： |
| 分类号: |
| 基金项目:Supported by the National Natural Science Foundation of China under Grant Nos.10171026，60473114 (国家自然科学基金)；theResearch Funds for Young Innovation Group，Education Department of Anhui Province of China under Grant No.2005TD03 (安徽省教育厅科技创新团队基金); the Project of Scientific Research for Young University Teachers of Anhui Province of China under Grant No.2005jq1016zd (安徽省高等学校青年教师资助科研计划) |
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| Degree Reduction of Generalized Ball Curves of Wang-Said Type |
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JIANG Ping,TAN Jie-Qing
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| Abstract: |
| In this paper，the authors discuss the degree reduction of generalized Ball curves of Wang-Said type by perturbation and the best uniform approximation respectively．The approximation error and relative approximation error are given and the two different methods are compared by some examples． |
| Key words: generalized ball curves of Wang-Said type generalized ball curves degree reduction best uniform approximation perturbation method |
