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Automatische Übersetzung:
Oronce Fine (1494-1555), French mathematician and cartographer. Primarily a popularizer, he was one of the most prolific authors of mathematical books of his age. He worked in a wide range of mathematical fields, including practical geometry, arithmetic, optics, gnomonics, astronomy, and instrumentalism. He gave the value of pi (= 3.1416) to be (22 2/9)/7 = 3.1746 in 1544. Later, he gave 47/15 = 3.1333 and, in De rebus mathematicis (1556), he gave 3 11/78 = 3.1410. In 1542 he published De mundi sphaera (On the Heavenly Spheres), a popular astronomy textbook. His writing on astronomy included guides to the use of astronomical equipment and methods. He also described more recent innovations, such as an instrument he called a metheoroscope (an astrolabe modified by adding a compass). His heart-shaped (cordiform) map projection may be his most famous illustration, and was frequently employed by other notable cartographers, including Peter Apian and