The Elements of Trigonometry is a comprehensive guidebook written by William Emerson in 1788. The book contains detailed information on the properties, relations, and calculations of sines, tangents, secants, and other trigonometric functions. It is designed to help readers understand the fundamental concepts of trigonometry and apply them to various mathematical problems and calculations. The book covers a wide range of topics, including the principles of trigonometry, the use of logarithms in trigonometry, and the application of trigonometry in navigation and surveying. The Elements of Trigonometry is a valuable resource for students, educators, and anyone interested in the field of mathematics. It is written in a clear and concise manner, making it easy to understand and apply the concepts presented. Overall, the book is an essential reference for anyone seeking to master the principles of trigonometry.The Doctrine Of The Sphere, And The Principles Of Plain And Spherical Trigonometry, All Plainly And Clearly Demonstrated.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.