A Treatise of Trigonometry, Plane and Spherical ...: As Likewise a Treatise of Stereographick and Orthographick Projection of the Sphere ... Illustrat (Paperback) (ISBN-13: 9781148269238)

A Treatise of Trigonometry, Plane and Spherical by Samuel Heynes, originally published in 1716, offers a comprehensive exploration of trigonometry and its applications. This historical text delves into both plane and spherical trigonometry, providing readers with a robust understanding of the principles and methods of the era. Additionally, the treatise includes a detailed examination of stereographic and orthographic projection of the sphere.

Illustrated with examples in the stereographic projection of right and oblique angled spherical triangles, this work serves as a valuable resource for those interested in the historical development of mathematical techniques and their practical uses in fields such as astronomy and navigation. It stands as a testament to the mathematical rigor and ingenuity of the early 18th century.

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