## An Elementary Treatise on Algebra: To Which Are Added Exponential Equations and LogarithmsExcerpt from An Elementary Treatise on Algebra: To Which Are Added Exponential Equations and Logarithms 1. Algebra, according to the usual definition, is that branch of mathematics in which the quantities considered are represented by the letters of the alphabet, and the operations to be performed upon them are indicated by signs. In this sense it would embrace almost the whole science of mathematics, elementary geometry alone being excepted. It is, consequently, subject in common use to some limitations, which will be more easily understood, when we are advanced in the science. 2. The sign + is called plus or more, or the post-live sign, and placed between two quantities denotes that they are to be added together. Thus 3 + 5 is 3 plus or more 5, and denotes the sum of 3 and 5. Likewise a + b is the sum of a and b, or of the quantities which a and b represent. 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. |

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