| Obtaining exact value by approximate computations |
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| 作者姓名： | Jing-zhong ZHANG Yong FENG~ Laboratory for Automated Reasoning and Programming Chengdu Institute of Computer Applications Chinese Academy of Sciences Chengdu China |
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| 作者单位： | Jing-zhong ZHANG Yong FENG~ Laboratory for Automated Reasoning and Programming，Chengdu Institute of Computer Applications，Chinese Academy of Sciences，Chengdu 610041，China |
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| 基金项目： | 国家重点基础研究发展计划(973计划);中国科学院基金 |
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| 摘 要： | Numerical approximate computations can solve large and complex problems fast.They have the advantage of high efficiency.However they only give approximate results,whereas we need exact results in some fields.There is a gap between approximate computations and exact results. In this paper,we build a bridge by which exact results can be obtained by numerical approximate computations.
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| 收稿时间： | 14 June 2006 |
| 修稿时间： | 29 March 2007 |
Obtaining exact value by approximate computations |
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| Jing-zhong ZHANG Yong FENG Laboratory for Automated Reasoning and Programming,Chengdu Institute of Computer Applications,Chinese Academy of Sciences,Chengdu ,China.Obtaining exact value by approximate computations[J].Science in China(Mathematics),2007,50(9):1361-1368. |
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| Authors: | Jing-zhong Zhang Yong Feng |
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| Institution: | Laboratory for Automated Reasoning and Programming, Chengdu Institute of Computer Applications, Chinese Academy of Sciences, Chengdu 610041, China |
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| Abstract: | Numerical approximate computations can solve large and complex problems fast.They have the advantage of high efficiency.However they only give approximate results,whereas we need exact results in some fields.There is a gap between approximate computations and exact results. In this paper,we build a bridge by which exact results can be obtained by numerical approximate computations. |
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| Keywords: | numerical approximate computation symbolic-numerical computation continued fraction |
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