浙江师范大学学报(自然科学版)
浙江師範大學學報(自然科學版)
절강사범대학학보(자연과학판)
JOURNAL OF ZHEJIANG NORMAL UNIVERSITY(NATURAL SCIENCES)
2015年
1期
34-40
,共7页
徐秀斌%包振威%何濛
徐秀斌%包振威%何濛
서수빈%포진위%하몽
非线性方程%Chebyshev-Halley型迭代法%收敛判据%半局部收敛
非線性方程%Chebyshev-Halley型迭代法%收斂判據%半跼部收斂
비선성방정%Chebyshev-Halley형질대법%수렴판거%반국부수렴
nonlinear equations%Chebyshev-Halley type iterations%convergence criteria%semilocal conver-gence
研究了一类变异型Chebyshev-Halley迭代法的收敛性。给出了在满足条件‖F"( x)‖≤ω(‖x‖)时的迭代法收敛性判据及半局部收敛性的证明,最后分析了参数α的变化对收敛半径的影响,以期为某种参数的选择提供依据。
研究瞭一類變異型Chebyshev-Halley迭代法的收斂性。給齣瞭在滿足條件‖F"( x)‖≤ω(‖x‖)時的迭代法收斂性判據及半跼部收斂性的證明,最後分析瞭參數α的變化對收斂半徑的影響,以期為某種參數的選擇提供依據。
연구료일류변이형Chebyshev-Halley질대법적수렴성。급출료재만족조건‖F"( x)‖≤ω(‖x‖)시적질대법수렴성판거급반국부수렴성적증명,최후분석료삼수α적변화대수렴반경적영향,이기위모충삼수적선택제공의거。
Under condition ‖F"( x)‖≤ω(‖x‖) , the convergence of the variants of a Chebyshev-Halley iteration family was discussed. The convergence criterion and semi-local convergence were obtained. The impact of the change of parameter α on the convergence radius was analyzed, so a kind of choosing criterion for parameters was provided.