Excerpt from A Treatise of Plane Trigonometry, Vol. 1: To Which Is Prefixed a Summary View of the Nature and Use of Logarithms; Being the Second Part of a Course of Mathematics, Adapted to the Method of Instruction in the American Colleges Now it has been shown, (algebra, 233, that powers may be multiplied, by adding their exponents, and divided, by subtracting their exponents. In the same manner, roots may be multiplied and divided, by adding and subtracting their fractional exponents. (alg. 980, When these ex ponents are arranged in tables, and applied to the general purposes of calculation, they are called Logarithms. 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.