薛
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薛凤祚 （清朝·算学家） was a notable historical figure from 清朝 in Chinese history. This page presents a detailed biography of 薛凤祚: 薛凤祚，淄川人.
Biography
薛凤祚，淄川人。
清史稿卷五百六 列传二百九十三：
薛凤祚，字仪甫，淄川人。少习算，从魏文魁游，主持旧法。顺治中，与法人穆尼阁谈算，始改从西学，尽传其术，因著算学会通正集十二卷，考验二十八卷，致用十六卷。其曰对数比例者，乃西算以假数求真数之便法也；曰中法四线，以西法六十分为度，不便以十进位，改从古法，以百分为度，所列止正弦、馀弦、正切、馀切，故曰四线。其推步诸书：曰太阳太阴诸行法原，曰木火土三星经行法原，曰交食法原，曰历年甲子，曰求岁实，曰五星高行，曰交食表，曰经星中星，曰西域回回术，曰西域表，曰今西法选要，曰今法表，皆会中、西以立法。以顺治十二年乙未天正冬至为元，诸应皆从以起算。以三百六十五日二十三刻三分五十七秒五微为岁实，黄、赤道交度有加减，恒星岁行五十二秒，与天步真原法同。梅文鼎谓其书详於法，而无快论以发其趣，盖其时新法初行，中、西文字辗转相通，故词旨未能尽畅。然贯通其中、西，要不愧为一代畴人之功首云。
凤祚定岁实秒数为五十七，与奈端合，与穆尼阁以为四十五秒者不同，则其学非墨守穆氏可知。或讥其谨守穆尼阁成法，依数推衍，非笃论也。
About薛凤祚Frequently Asked Questions
- Who is 薛凤祚?
- 薛凤祚 was 清朝 Period 算学家, whose life is recorded in official historical documents.
- In which dynasty did 薛凤祚 live?
- 薛凤祚 lived during the 清朝 period, with the official title of 算学家.
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- The biographical content on this page has been compiled and cross-checked against official historical records and publicly available encyclopedic sources, with links to encyclopedia entries provided for further reference.