Petrus de Dacia, also called Philomena and Peder Nattergal (Peter Nightingale), was a Danish scholar who lived in the 13th century. He worked mainly in Paris and Italy, writing in Latin. He published a calendar of new moon dates for the years 1292-1367. In 1292, he published a book on mathematics that contained a new method for the calculation of cubic roots. He also described a mechanical instrument to predict solar and lunar eclipses as seen from Paris.
Editions
Corpus Philosophorum Danicorum Medii Aevi vol. X, ed. Fritz Saaby Pedersen. Copenhagen 1983.
Petri Philomeni de Dacia in Algorismum vulgarem Johannis de Sacrobosco commentarius, edited by Maximilian Curtze, year 1897. This text by Petrus Philomena de Dacia is a commentary about elementary methods in arithmetic. Its primary notability is that it has a better method for extracting cube roots (better than the pre-existing method reported by Johannes de Sacrobosco).
Rasch, G. (1932) Petrus de Dacia, pp. 12-15 in: Meisen, V. Prominent Danish Scientists through the Ages. University Library of Copenhagen 450th Anniversary. Levin & Munksgaard, Copenhagen
January 10, 2023
petrus, dacia, mathematician, confused, with, petrus, dacia, swedish, monk, petrus, dacia, also, called, philomena, peder, nattergal, peter, nightingale, danish, scholar, lived, 13th, century, worked, mainly, paris, italy, writing, latin, published, calendar, . Not to be confused with Petrus de Dacia Swedish monk Petrus de Dacia also called Philomena and Peder Nattergal Peter Nightingale was a Danish scholar who lived in the 13th century He worked mainly in Paris and Italy writing in Latin He published a calendar of new moon dates for the years 1292 1367 In 1292 he published a book on mathematics that contained a new method for the calculation of cubic roots He also described a mechanical instrument to predict solar and lunar eclipses as seen from Paris Editions EditCorpus Philosophorum Danicorum Medii Aevi vol X ed Fritz Saaby Pedersen Copenhagen 1983 Petri Philomeni de Dacia in Algorismum vulgarem Johannis de Sacrobosco commentarius edited by Maximilian Curtze year 1897 This text by Petrus Philomena de Dacia is a commentary about elementary methods in arithmetic Its primary notability is that it has a better method for extracting cube roots better than the pre existing method reported by Johannes de Sacrobosco References EditPedersen Olaf in Complete Dictionary of Scientific Biography 2008 http www encyclopedia com doc 1G2 2830903368 html Rasch G 1932 Petrus de Dacia pp 12 15 in Meisen V Prominent Danish Scientists through the Ages University Library of Copenhagen 450th Anniversary Levin amp Munksgaard Copenhagen Retrieved from https en wikipedia org w index php title Petrus de Dacia mathematician amp oldid 1125509027, wikipedia, wiki, book, books, library,
