A logarithm is the power which a certain number is raised to get another number. Before calculators and various types of complex computers were invented it was difficult for scientists and ...

Table of Logarithms and Anti-logarithms (Four Figures), 1 to 10,000. Arranged by Major-Gen. J. C. Hannyngton. Pp. iv + 41. (London: C. and E. Layton, n.d.). Price 1s ...

Logarithms are a convenient way to express large numbers. Before the invention of calculators, the only alternative to slide rules was to use tables of logarithms. Some important formulae, also called ...