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丁取忠 (清朝·数学家) was a notable historical figure from 清朝 in Chinese history. This page presents a detailed biography of 丁取忠: 丁取忠,长沙人.
Biography
丁取忠,长沙人。
清史稿卷五百七 列传二百九十四:
丁取忠,字果臣,长沙人。研究象数,不求闻达,刻算书二十有一种,为白芙堂丛书。光绪初,卒于家,年逾七十。所自譔者为数学拾遗一卷,以所演算草较详,可便初学,又意在拾遗,故未暇详其义之出自何人。
又譔粟布演草二卷,自序曰:“道光壬辰,余始习算,友人罗寅交学博洪宾以难题见询,久无以应。同治初元,始获交南丰吴君子登太史,驭以开屡乘方法,余始通其术,然未悉其立法之根也。后吴君游岭表,余推之他题,及辗转相求,仍多窒碍。又函询李君壬叔,蒙示以廉法表及求总率二术,而其理始显。后吴君又示以指数表及开方式表,李君复为之图解以阐其义。由是三事互求,理归一贯。余因取数题详为演草,并捷法图解,都为一卷。质之南海邹君特夫,君复为增订开屡乘方法,并另设题演草,补所未备。即算家至精之理,如圜内容各等边形,皆可借发商生息以明之,诚快事也!”
后又譔演草补一篇,序云:“余前年与左君壬叟共辑粟布演草,原为商贾之习算者设,或一例而演数题,或一题而更数式。或用真数,或用代数。其式或横列,或直下,杂然并陈,无非欲学者比类参观,易於领悟也。乃初学习之,犹谓茫无入门处,盖商贾所习算书,大都详於文而略於式。况代数又古算术所无,宜其卒然览之而不解也。兹更拟一题附后,特仿数理精蕴借根方体例,专详於文,庶初学读之,可因文知义。算理既明,则全书各式,可涣然冰释,或兼可为习代数者之先导乎?”其乡人李锡蕃,亦以演算名。
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