Calculating Without InstrumentsBook - 1993
This volume describes techniques of computation and approximation that may be used to mentally and rapidly calculate mathematical quantities, including results of arithmetic operations and values of elementary functions. These methods range from very old to recent to brand new. They are not shortcuts, rather, the book is aimed at sharpening the mental skills needed to perform mathematical acrobatics.
Publisher: Houston : Gulf Pub. Co., c1993
Branch Call Number: Science & Nature 513.9 Doe