Russian peasant multiplication
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English[edit]
Noun[edit]
Russian peasant multiplication (uncountable)
- (multiplication) A form of multiplication in which the powers of two in the decomposition of the multiplicand are found by writing it on the left and progressively halving the left column, discarding any remainder, until the value is 1 (or −1, in which case the eventual sum is negated), while doubling the right column.