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Division by two

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Division by two

Wikipedia articleDbpedia source

In mathematics, division by two or halving has also been called mediation or dimidiation. The treatment of this as a different operation from multiplication and division by other numbers goes back to the ancient Egyptians, whose multiplication algorithm used division by two as one of its fundamental steps.Some mathematicians as late as the sixteenth century continued to view halving as a separate operation, and it often continues to be treated separately in modern computer programming.Performing this operation is simple in decimal arithmetic, in the binary numeral system used in computer programming, and in other even-numbered bases.

English Wikipedia http://en.wikipedia.org/wiki/Division_by_two

Spanish wikipedia http://es.wikipedia.org/wiki/División_entre_dos