Dr. Mayer Goldberg

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Computing logarithms digit-by-digit

In this work, we present an algorithm for computing logarithms of positive real numbers, that bears structural resemblance to the elementary school algorithm of long division. Using this algorithm, we can compute successive digits of a logarithm using a 4-operation pocket calculator. The algorithm makes no use of Taylor series or calculus, but rather exploits properties of the radix-d representation of a logarithm in base d. As such, the algorithm is accessible to anyone familiar with the elementary properties of exponents and logarithms.
Publication language English
Pages 109-114
Journal International Journal of Mathematical Education in Science and Technology
Volume 37
Issue number 1
Publication status Published - 2006
Access to Document
10.1080/00207390500185950