Excerpt from A Practical Text-Book on Plane and Spherical Trigonometry Tms work is intended as a practical text-book on Plane and Spherical Trigonometry, adapted to the needs of High Schools and Colleges. While considerable space has been devoted to the development of the theoretical portions of the subject, the practical applica tions of the formula have not been neglected, and in the chapters on the. Solution of Triangles will be found a carefully selected assortment of exercises and ex amples, arranged With the view of giving the student a thorough drill in numerical computation. Chapter II. Is devoted to the functions of acute angles, the definitions being given by aid of the right triangle; a number of numerical and other exercises serve to give familiarity With them, and the usual fundamental relations are deduced. In Chapter III. The principles of the rectangular co - ordinates of a point in a plane are employed to give general definitions of the functions, applicable to angles of any magnitude, positive or negative, and the fundamental relations are proved to hold universally. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.