This reference work is an essential tool for anyone working with numbers. The tables provide logarithms, sines, cosines, tangents and cotangents for angles from 0 to 90 degrees, with extreme accuracy and detail. Each table is easy to read and use. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States...