Elements of Plane and Spherical Trigonometry: With Their Applications to Heights and Distances Projections of the Sphere, Dialling, Astronomy, the Sol (Hardcover) (ISBN-13: 9781020672729)

First published in the early 19th century, Gregory's classic textbook on trigonometry remains a valuable resource for students and practitioners of applied mathematics. Combining clear explanations with practical examples, the book covers a wide range of topics, from surveying and astronomy to geodesy and navigation.

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