01510nam a2200325 a 4500 ebr10634616 CaPaEBR m u cr cn||||||||| 120727s2013 njua sb 001 0 eng d 2012023216 9780691148922 (hardcover : alk. paper) 9781400844807 (e-book) CaPaEBR CaPaEBR (OCoLC)825071220 QA535 .V36 2013eb 516.24 23 Van Brummelen, Glen. Heavenly mathematics [electronic resource] : the forgotten art of spherical trigonometry / Glen Van Brummelen. Princeton : Princeton University Press, c2013. xvi, 192 p. : ill. Includes bibliographical references and index. Heavenly mathematics -- Exploring the sphere -- The ancient approach -- The medieval approach -- The modern approach: right-angled triangles -- The modern approach: oblique triangles -- Areas, angles, and polyhedra -- Stereographic projection -- Navigation. Electronic reproduction. Palo Alto, Calif. : ebrary, 2013. Available via World Wide Web. Access may be limited to ebrary affiliated libraries. Spherical trigonometry. Trigonometry. Electronic books. local ebrary, Inc. http://site.ebrary.com/lib/rucke/Doc?id=10634616 An electronic book accessible through the World Wide Web; click to view 158603 158603