duodecimal system

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Related to duodecimal system: Base-12, Dozenal
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Noun1.duodecimal system - a positional system of numeration that uses duodecimal digits and a radix of twelve
positional notation, positional representation system - a numeration system in which a real number is represented by an ordered set of characters where the value of a character depends on its position
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References in periodicals archive ?
(1) Compare the advantages of a decimal and of a duodecimal system of notation in reference to (1) commerce, (2) pure arithmetic; and shew by duodecimals that the area of a room whose length is 29 feet 7 1/2 inches, and breadth is 33 feet 9 1/2 inches is 704 feet 30 3/8 inches.
Later in life, Aitken (1962) published an impassioned pamphlet against decimalization, proposing in its place the duodecimal system. To a lay audience he described the merits of base 12 arithmetic, explained the duodecimal system with great clarity, and drew analogies to the number systems built around 12, 60, and 240 that have served humanity so well in measurements that range from the time of day to months of the year, and building construction through to currency systems.
He also worked on several similar devices, including a 'Rectangulus' which established the difference between the decimal and duodecimal systems.