William Leybourne (1626-ca 1700) started as a printer, then remade himself as a “mathematical practitioner.” He taught mathematics and practical astronomy. He published on astronomy, surveying, and navigation, as well as on the use of Napier’s bones and the “sliding rule.” Leybourne was a practical mathematician and a surveyor of gentlemen’s estates in London after the Great Fire.
About the Book
A classic summation of the knowledge and practice of spherical geometry and trigonometry, celestial position measurement, and land surveying and navigation. This book epitomizes practical astronomy, just three years after the publication of Isaac Newton’s Principia mathematica.