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Ludolphi ©¡ Ceulen de circulo et adscriptis liber. In quo plurimorum polygonorum latera per irrationalium numerorum griphos, quorum libet autem per numeros absolutos secundum algebricarum ©Œquationum leges explicantur

Ludolf van Ceulen

出版	Marse, Georgius vander, 1619
URL	http://books.google.com.hk/books?id=J4kgzgEACAAJ&hl=&source=gbs_api