{"created":"2023-05-15T09:58:39.231489+00:00","id":2642,"links":{},"metadata":{"_buckets":{"deposit":"b657a619-9bf4-430f-927b-44e523f06ab3"},"_deposit":{"created_by":5,"id":"2642","owner":"5","owners":[5],"pid":{"revision_id":0,"type":"depid","value":"2642"},"status":"published"},"_oai":{"id":"oai:miyazaki-u.repo.nii.ac.jp:00002642","sets":["73","73:36","73:36:330","73:36:330:322"]},"author_link":["13669","11807","13670","11805","13672"],"item_10002_alternative_title_1":{"attribute_name":"その他（別言語等）のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"タバイチョウ ケイサン ソフトウェア ノ カイハツ","subitem_alternative_title_language":"ja-Kana"}]},"item_10002_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2012-07-30","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"341","bibliographicPageStart":"337","bibliographicVolumeNumber":"41","bibliographic_titles":[{"bibliographic_title":"宮崎大学工学部紀要","bibliographic_titleLang":"ja"},{"bibliographic_title":"Memoirs of Faculty of Engineering, University of Miyazaki","bibliographic_titleLang":"en"}]}]},"item_10002_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"It is necessary to employ “multiple precision arithmetic\" for computing long digit numbers, because numerical representation of computers is usually limited. This paper aims at making prototype software to compute more than one million digit numbers. A long digit number is divided into 2^n short digit numbers, each of which can be calculated by ordinal double precision arithmetic units. The key technique of “multiple precision arithmetic\" is based on fast Fourier transform and convolution theorem. The prototype program is verified from the viewpoint of correctness of calculation up to 4 X 10^6 digits and speed up ratio vs theoretical value. The program is applied to calculation of a 10^7 or more digit π.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_10002_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"宮崎大学工学部","subitem_publisher_language":"ja"},{"subitem_publisher":"Faculty of Engineering, University of 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Software","subitem_title_language":"en"}]},"item_type_id":"10002","owner":"5","path":["73","36","330","322"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2012-11-02"},"publish_date":"2012-11-02","publish_status":"0","recid":"2642","relation_version_is_last":true,"title":["多倍長計算ソフトウェアの開発"],"weko_creator_id":"5","weko_shared_id":2},"updated":"2023-11-27T05:29:38.848197+00:00"}