Genaille–Lucas rulers (also known as Genaille's rods) are an arithmetic tool invented by Henri Genaille, a French railway engineer, in 1891. The device...
5 KB (475 words) - 19:40, 7 July 2024
Napier's bones (section Genaille–Lucas rulers)
5 = 4938271605 In 1891, Henri Genaille invented a variant of Napier's bones which became known as Genaille–Lucas rulers. By representing the carry graphically...
35 KB (2,897 words) - 22:45, 14 April 2024
known as Napier's bones (Scotland, 1617) and Genaille–Lucas rulers (France, late 1800s). Genaille–Lucas rulers Napier's bones Williams, Michael R. (1997)...
10 KB (1,364 words) - 01:52, 2 June 2024
Édouard Anatole Lucas (French pronunciation: [fʁɑ̃swa edwaʁ anatɔl lykɑ]; 4 April 1842 – 3 October 1891) was a French mathematician. Lucas is known for his...
7 KB (707 words) - 22:57, 25 June 2024
multiply–add Wallace tree Multiplicative inverse, reciprocal Factorial Genaille–Lucas rulers Lunar arithmetic Napier's bones Peasant multiplication Product (mathematics)...
48 KB (6,259 words) - 16:51, 12 August 2024
is in the Canton of Luxeuil-les-Bains. Henri Genaille (October 2, 1856-?) inventor of Genaille-Lucas rulers Raymond Py (2001-2003, Independent) Denis Laurent...
3 KB (181 words) - 13:34, 2 December 2022