Le Calcul Simplifie: Graphical and Mechanical Methods for Simplifying Calculation (Charles Babbage Institute Reprint)
Maurice d'Ocagne, J. Howlett, M. R. WilliamsISBN: 0262150328; 9780262150323;
In the days before the sophisticated mechanical esk calculator and the later electronic devices, d'Ocagne's nomograms were highly regarded methods for performing calculations. This first translation of d'Ocagne's Le Calcul Simplifi makes a classicwork on the early art of computation available to historians of computer science. Le Calcul Simplifi , first published in the early 1890s, is volume 11 in the Charles Babbage Institute Reprint Series.