Excerpt from Elements of Analytic Trigonometry, Plane and Spherical The mechanical arrangement of a calculation may con duce to its accuracy, and to the ease of revising it, in case of need. It is with this, as with order in all matters of business; it is proper in the beginning to acquire good habits, which practice will render easy. The numerous and frequently complicated operations of trigonometry have especially need of such a precaution. 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.