Elements of Plane Trigonometry

Elements of Plane Trigonometry: Large Print By Hugh Blackburn The succeeding chapters are devoted to an exposition of the nature of the trigonometrical ratios, and to the demonstration by geometrical constructions of the principal propositions in trigonometrical surveying: and I have concluded with a proof of the formulae for the sine and cosine of the sum of two angles treated as examples of the elementary theory of projection. Having learned thus much the student has gained a knowledge of trigonometry as originally understood, and may apply his knowledge in surveying; and he has also reached a point from which he may advance into analytical trigonometry and its use in natural philosophy. We are delighted to publish this classic book as part of our extensive Classic Library collection. Many of the books in our collection have been out of print for decades, and therefore have not been accessible to the general public. The aim of our publishing program is to facilitate rapid access to this vast reservoir of literature, and our view is that this is a significant literary work, which deserves to be brought back into print after many decades. The contents of the vast majority of titles in the Classic Library have been scanned from the original works. To ensure a high quality product, each title has been meticulously hand curated by our staff. Our philosophy has been guided by a desire to provide the reader with a book that is as close as possible to ownership of the original work. We hope that you will enjoy this wonderful classic work, and that for you it becomes an enriching experience.