Master the essentials of plane and spherical trig for naval use and real-world navigation. This edition brings together theory and practical application in one comprehensive volume, designed for quick, reliable reference aboard ship or at the Royal Naval College.

From fundamentals to problem solving, it covers both the mathematical framework and the hands-on techniques needed to apply logarithms and trigonometric formulae to real-world navigation, surveying, and astronomy. The text places a clear emphasis on practical work, with numerous worked examples, worked-out procedures, and a rich set of exercises drawn from examination papers.

Two main parts introduce plane and spherical trigonometry, then dedicate a sizeable section to practical methods and the use of tables of logarithms.

Step-by-step guidance on solving triangles, areas, and navigational problems with an eye toward naval needs.

Historical context and naval-education focus, showing how the material supports Nautical Astronomy and navigation tasks.

A wealth of end-of-chapter problems and miscellaneous examples to practice and solidify understanding.

Ideal for readers of classic mathematical texts used in naval training, students studying navigation, and anyone seeking a solid, application-driven introduction to plane and spherical trigonometry.

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