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Code of the Quipu is a book on the Inca system of recording numbers and other information by means of a quipu, a system of knotted strings.It was written by mathematician Marcia Ascher and anthropologist Robert Ascher, and published as Code of the Quipu: A Study in Media, Mathematics, and Culture by the University of Michigan Press in 1981.
The word Quipu is derived from a Quechua word meaning 'knot' or 'to knot'. [16] The terms quipu and khipu are simply spelling variations on the same word.Quipu is the traditional spelling based on the Spanish orthography, while khipu reflects the recent Quechuan and Aymaran spelling shift.
With her husband, Ascher co-authored the book Code of the Quipu: A Study in Media, Mathematics, and Culture (University of Michigan Press, 1981); it was republished in 1997 by Dover Books as Mathematics of the Incas: Code of the Quipu. [6]
Quipukamayuq with his quipu and a yupana, the main instruments used by the Incas in mathematics. The mathematics of the Incas (or of the Tawantinsuyu) was the set of numerical and geometric knowledge and instruments developed and used in the nation of the Incas before the arrival of the Spaniards. It can be mainly characterized by its ...
Locke's most prominent work, The Ancient Quipu or Peruvian Knot Record (1923), demonstrated how the Inca tied knots on quipu cords using a base-10 positional number system. [2] In addition to his work on quipus , Locke is also recognized for his research on the history of mathematics [ 3 ] and mathematical instruments, particularly his research ...
A well-kept example of quipu from the Inca Empire on display at the Larco Museum. Despite the lack of a written language, the Incas invented a system of record-keeping simple and stereotyped information based on knotted string known as quipu. [22] To describe the decimal system, these knot structures used complex knot arrangements and color ...
Urton is a specialist in Andean archaeology, particularly the quipu (khipu) rope-based recording system used in the Inca empire in the 15th and 16th centuries. He is one of the most prominent advocates of the theory that the quipus encode linguistic as well as numerical information. [5]
A tambo (Quechua: tampu, "inn") was an Inca structure built for administrative and military purposes. Found along the extensive roads, tambos typically contained supplies, served as lodging for itinerant state personnel, [1] and were depositories of quipu-based accounting records.