Abstract

The construction of tables turned out to be of vital importance for facilitating calculations and for avoiding the need to carry out the same operations many times. We have seen how tables have been constructed from the earliest times, for example, the Babylonians produced tables for calculating ‘inverses’ (Section 1.2 above). In Astronomy, trigonometric tables have played a major role, and these correspond to the tables of chords that Ptolemy produced in the 2nd century (Section 10.1). A table of logarithms is another type of table, specifically introduced to make calculations easier, by transforming multiplications into additions; we shall look at the decimal tables established by Briggs in the 17th century following on from the work of Napier (Section 10.2).

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