Short Logarithmic and other Tables

Abstract

THESE tables were compiled by Prof. Unwin to facilitate arithmetical calculations in cases where great accuracy is unnecessary, and are selected and so arranged as to be specially useful in the solution of engineering problems. That the book has been of service to many engineers is evident from the fact that it has reached its sixth edition. The first table gives five-figure logarithms (by use of proportional parts) of numbers up to 9999, and occupies four pages, being followed by anti-logarithms. Trigonometrical tables for the natural functions of angles and their logarithms are given for intervals of one minute. Several tables follow, which are adapted for simplifying engineering calculations, such as squares, cubes, square roots, cube roots, hyperbolic logarithms, height of fall to produce a given velocity, and velocity due to falling from a given height. There are also included tables of areas and circumferences of circles, and a segment table, as well as tables of weights of engineering materials. In addition, the book contains a large number of factors for conversion from the British to the metric system, and vice versa. The usefulness of a set of mathematical tables depends very greatly upon the facility with which the information required can be obtained, and the arrangement of the present set leaves little to be desired in this respect.