著者

磯本 征雄 森田 一興

出版者

一般社団法人情報処理学会

雑誌

情報処理 (ISSN:04478053)

巻号頁・発行日

vol.13, no.9, pp.593-598, 1972-09-15

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Generally, it is very difficult to discuss about the reliability of library subprograms made for the scientific calculation. Almost all subprograms are written in the FORTRAN language. But, at present, many people use the library subprograms which were made by the other people. Therefore, it has got necessary to know about not only the efficiency, but also the accuracy and the reliability of the subprograms. In this paper, we show one of the methods to check the reliability of the subprogram for linear equations. Here, it is the main purpose to show the method to check the behavior of the subprogram around the ill-conditional problems. In this method, it is possible to check one of the reliability of the subprogram of linear equations in a certain norm, disregarding the details of the algorithm.