Multiplication algorithm: Difference between revisions

Revision as of 14:10, 18 December 2012

Revision as of 20:15, 24 December 2012

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==Quarter square multiplication==

Two quantities can be multiplied using quarter squares by employing the following identity involving the [[Floor and ceiling functions|floor fuctionfunction]] that some sources<ref>{{citation |title= Quarter Tables Revisited: Earlier Tables, Division of Labor in Table Construction, and Later Implementations in Analog Computers |last=McFarland |first=David|url=http://escholarship.org/uc/item/5n31064n |page=1 |year=2007}}</ref><ref>{{cite book| title=Mathematics in Ancient Iraq: A Social History |last=Robson |first=Eleanor |page=227 |year=2008 |isbn= 978-0691091822 }}</ref> are attributing to [[Babylonian mathematics]] (2000–1600 BC).

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