Results

Practical astronomy with your calculator / Peter Duffett-Smith.

Le calcul simplifié : graphical and mechanical methods for simplifying calculation / Maurice d'Ocagne ; translated by J. Howlett and M.R. Williams.

The calculating machines (Die Rechenmaschinen) : their history and development / Ernst Martin ; translated and edited by Peggy Aldrich Kidwell and Michael R. Williams.

Babbage's calculating engines : a collection of papers / [edited] by Henry Prevost Babbage ; with a new introduction by Allan G. Bromley.

Handbook of the Napier tercentenary celebration : or, modern instruments and methods of calculation / edited by E.M. Horsburgh ; with a new introduction by Michael R. Williams.

Handbook of the exhibition of Napier relics and of books, instruments, and devices for facilitating calculation / edited by E.M. Horsburgh.

The description and use of two arithmetick instruments : together with a short treatise, explaining and demonstrating the ordinary operations of arithmetick : as likewise a perpetual almanack and several useful tables : presented to ... Charles II ... / by S. Morland.

Rabdologiae seu numerationis per virgulas libri duo : cum appendice de expeditissimo multiplicationis promptuario. Quibus accessit & arithmeticae localis liber unus / authore & inventore Ioanne Nepero, barone Merchistonii &c.

The art of numbring by speaking-rods: vulgarly termed Nepeirs bones : by which the most difficult parts of arithmetick, as multiplication, division, and extracting of roots both square and cube, are performed with incredible celerity and exactness (without any charge to the memory) by addition and substraction only / Published by W.L.