Book Description

Excerpt from The Calculator's Constant Companion, for Practical Men, Machinists, Mechanics, and Engineers Labour-saving machinery is a leading feature of the' present time; the amount of labouring force exerted by a machine operated by the force of steam, water, air, or other motor, can be measured in each particular case with the greatest nicety, but there is no unit by which mental labor is measured. However, economy in mental labor is as de sirable as in physical labor. The discovery of logarithms saved as much mental labor, as the introduction of steam did physical. The table I now lay before the public, the result of calculations, termed The Calculator's Constant Companion, is only second to a table of logarithms as a mental labor-saving machine. By the use of this table I was enabled, during the past twenty years, to make more calculations than any one man that has gone before me, which I have m a great measure made public. The number of purposes to which this table may be applied, to save the labor of calculating, are without limit, but from the following suitable examples of its use, the mode of application in every possible case becomes easy. 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.