Unique, thought-provoking study discusses quipu, an accounting system employing knotted, colored cords, used by Incas to transmit information. Cultural context, mathematics involved, quipu-maker in Inca society, and even how to make a quipu. Fascinating for anthropologists, ethnologists, students, general readers. Over 125 photos and illustrations.
Mathematics in the Time of the Pharaohs by Richard J. Gillings This carefully researched study examines Egyptian mathematics, demonstrating that although operations were limited in number, they were remarkably adaptable to a great many applications.
Number Words and Number Symbols: A Cultural History of Numbers by Karl Menninger Classic study discusses number sequence and number language, then explores written numerals and computations in a wide range of cultures. ". . . superior narrative ability." — Library Journal. 282 illus.
