Logarithmic and Other Mathematical Tables (Classic Reprint)

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Excerpt from Logarithmic and Other Mathematical TablesThe extended calculations required by some of the applications of trigonometry are laborious even to experienced computers, and to begin? Ners are often a fruitful source of discouragement. Experience in making calculations and familiarity with the formulas employed suggest methods of arrangement by which skilful computers shorten their work and save much of their time. The aim should always be to secure the results to the required degree of accuracy with a minimum expenditure of time and labor. So far as the mechanical part of the work is concerned, the principal factors leading to this end are the proper arrangement of the formulas employed, the use of conveniently arranged tables having the needed helps for facili tating interpolation, and the use of no more places of decimals than are necessary to secure the desired accuracy in the results.Orderly arrangement is almost indispensable to correct and rapid com putation, on this account the practice of making computations on scraps of paper without systematic arrangement should not be followed. In the beginning, an outline of the entire solution should be made by writing the symbols of the quantities to be used in a vertical column, those to be combined being placed adjacent. In the same solution, turning more than once to the same place in the tables should be avoided, by taking at one opening all the functions of a given angle that may be required, and writing them in their proper places. The tables employed should be conveniently arranged, and, in general, should have auxiliary tables of proportional parts on the margins of the pages, so that the interpolations can easily be made mentally.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis 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.