An iteration scheme in the class of Steffensen-type methods is proposed and extended to achieve the optimized speed for methods with memory. In fact, 100% convergence acceleration is obtained in contrast to its version without memory and without any additional functional evaluations. Improvements of the convergence radii by this technique are illustrated by the dynamic of the iterations. Finally, an application of the proposed scheme in computing annuity in finance is furnished.
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Changchun Guanghua Univ, Fdn Dept, Changchun 130033, Peoples R ChinaChangchun Guanghua Univ, Fdn Dept, Changchun 130033, Peoples R China
Wang, Shuai
Xian, Haomiao
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Beijing Normal Univ, Sch Stat, Beijing 100875, Peoples R China
Sichuan Rural Commercial United Bank, IT Dept, Chengdu 610000, Peoples R ChinaChangchun Guanghua Univ, Fdn Dept, Changchun 130033, Peoples R China
Xian, Haomiao
Liu, Tao
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Northeastern Univ Qinhuangdao, Sch Math & Stat, Qinhuangdao 066004, Peoples R ChinaChangchun Guanghua Univ, Fdn Dept, Changchun 130033, Peoples R China
Liu, Tao
Shateyi, Stanford
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Univ Venda, Sch Math & Nat Sci, Dept Math & Appl Math, P Bag X5050, ZA-0950 Thohoyandou, South AfricaChangchun Guanghua Univ, Fdn Dept, Changchun 130033, Peoples R China