Heavenly mathematics the forgotten art of spherical trigonometry - Van Brummelen, Glen.; ebrary, Inc. (Princeton : Princeton University Press, 2013)
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.
Includes bibliographical references and index.
Electronic reproduction.
Keywords: Spherical trigonometry; Trigonometry; Electronic books