C^1級関数f(x)に対する非線形方程式f(x)=0の近似解の収束性について

Material type: 文書・図像類

Author: 樋口, 功

Publisher: 愛知工業大学

Publication date: 2002-03-31

Material Format: Digital

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Note (General)：: As the methods of finding the approximate solutions of non-linear equation f (x) = 0, the Newton and the secant methods are well known and are recentl...

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Material Type: 文書・図像類
Title: C^1級関数f(x)に対する非線形方程式f(x)=0の近似解の収束性について
Author/Editor: 樋口, 功
Author Heading: 樋口, 功
Publication, Distribution, etc.: 愛知工業大学
Publication Date: 2002-03-31
Publication Date (W3CDTF): 2002-03-31
Alternative Title: On the convergence of approximate solutions of non-linear equation f(x)=0 for f(x) in C^1-class
Periodical title: 愛知工業大学研究報告. A, 基礎教育センター論文集 = Bulletin of Aichi Institute of Technology. Part A
No. or year of volume/issue: 37
Volume: 37
Pages: 1-5
ISSN (Periodical Title): ISSN : 0387-0804
Text Language Code: eng
Target Audience: 一般
Note (General): As the methods of finding the approximate solutions of non-linear equation f (x) = 0, the Newton and the secant methods are well known and are recently recognized again because they are fairly applicable to computer calculation. In these iterative procedures, the curve y = f (x) is approximated by the straight lines and hence the recurrence formulas are relatively simple and the successive calculations are not so difficult. But, in general, the convergence of approximate sequence {x_n} is not necessarily assured. Indeed, in many cases, the sequence {x_n} does not approach to a true solution. For giving the assurrance of the convergence of {x_n} we must determine the suitable extent of starting point x_0. The typical proof of the convergence of {x_n} is done with the help of the so-called principle of contraction mapping under the additional condition that f (x) is in the class C^2 The purpose of this paper is to prove the convergence of {x_n} when f(x) is in C^1 but not necessarily in C^2 And further, the author should like to remark that his method does not ask the help of the principle of contraction mapping and that his new proof is applicable to the case of the more complicated secant method whose approximate sequence is determined by recursion formula of three poins.
identifier:http://repository.aitech.ac.jp/dspace/handle/11133/2022
Access Restrictions: 限定公開
Periodical Title (NCID): AA11564921
https://ci.nii.ac.jp/ncid/AA11564921
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 愛知工業大学 : 愛知工業大学学術情報リポジトリ