The Elements of Trigonometry, written by William Emerson in 1788, is a comprehensive guide to the properties, relations, and calculations of sines, tangents, secants, and other trigonometric functions. The book covers a wide range of topics, from the basic principles of trigonometry to more advanced concepts such as spherical trigonometry and the use of logarithms in calculations. It is written in a clear and concise style, with numerous examples...