Plane Trigonometry, Vol. 1: An Elementary Course, Excluding the Use of Imaginary Quantities (Classic Reprint) - Hardcover

S. L. Loney

Hardcover

ISBN 10: 0332851702 ISBN 13: 9780332851709

Publisher: Forgotten Books, 2018

Synopsis

Clear, structured introduction to plane trigonometry for students .

This edition presents an elementary, practice‑oriented course with a solid foundation in trig ratios, identities, and applications.

In the text, you’ll find a careful progression from basic angle measurement to the solving of triangles, with emphasis on practical formulae and worked examples. It includes discussions of logarithms and other tools used to simplify calculations, plus attention to signs, multiple and submultiple angles, and common pitfalls. The material is arranged to support study in schools and early university courses, with a generous set of exercises and essential theorems clearly highlighted.

• Measured angles and angle systems, including sexagesimal and radians
• Trigonometrical ratios for all angles, plus methods to handle ambiguities
• Techniques for solving triangles and applying trigonometry to practical problems
• Foundations of logarithms and their use in computation

Ideal for readers beginning plane trigonometry or revisiting the subject with a steady, classroom‑tested approach. Suitable for self‑study or classroom use as part of a broader mathematics curriculum.

Edition details

• Publisher: Forgotten Books
• Publication date: 2018
• Language: English
• ISBN 10: 0332851702
• ISBN 13: 9780332851709
• Binding: Hardcover
• Number of pages: 333