…His fame reached the Holy Roman Emperor Frederick II, and in his later years, the Republic of Pisa bestowed upon him the title of "Leonardo eminently learned" and granted him a pension. His major work, Liber abaci (also known as the Book of Arithmetic, 1202, revised 1228), was a groundbreaking work that introduced the method of calculation using Indo-Arabic numerals (today's Arabic numerals) to the European world. … *Some of the terminology explanations that mention "Liber abaci" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…その名声は,時の神聖ローマ帝国皇帝フリードリヒ2世にも届き,晩年にはピサ共和国から〈卓越し学識あるレオナルド〉の名を与えられ,年金を供与されたことが記録に残されている。主著《アバクスの書Liber abaci》(別称《算術の書》。1202,1228改訂)は,インド・アラビア式数字(今日の算用数字)による筆算法をヨーロッパ世界に伝えた画期的な書物である。… ※「《Liber abaci》」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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