ready reckoner

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ready reckoner

n
(Mathematics) a table of numbers used to facilitate simple calculations, esp one for applying rates of discount, interest, charging, etc, to different sums

Reckoner

A small book of assorted tables that was mainly used by store owners who did not want to take the time to do the necessary arithmetic, or by those who did not know how to do the calculations. Included were tables such as interest amount vs. time and rate, board dimensions vs. board feet, and cistern capacity vs. cistern dimensions.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.ready reckoner - a handbook of tables used to facilitate computation
enchiridion, handbook, vade mecum - a concise reference book providing specific information about a subject or location
Translations

ready reckoner

[ˈrɛdɪˈrɛknəʳ] n (Brit) → prontuario di calcolo
References in periodicals archive ?
In this book you'll find one of the most comprehensive sporting ready reckoners ever made and with its' easy guide to bet settling, which explains the short cuts and systems used by the professional settler, there is no wager which you will not be able to settle.
The book is one of the most comprehensive sporting ready reckoners ever produced, and explains the short cuts and systems used by the professional settler.
But some taxis will not have euro-friendly meters, so they will continue charging the old prices, using ready reckoners to convert the figures to the new-fangled currency.