Details
NOVIOMAGUS, Johannes (1494-1570). De numeris libri duo, quorum prior logisticen, & ueterum numerandi consuerudinem: prosterior theoremata numerorum complectitur. Cologne: Joannes Gymnicus, 1539.
8o (158 x 92 mm). Printer's device on title and woodcut illustrations in text of finger reckoning, the line abacus, etc. (Light browning and minor marginal dampstaining.) 20th-century half morocco. Provenance: early marginalia at end.
Second edition, reprint of the 1539 Wechel edition. "The book sets forth the Roman and Greek notations, the fundamental operations both with the Hindu numerals and upon the line abachus, the finger notation as found in the works of Baeda, the astrological numerals of the Middle Ages, and the Boethian theory of numbers" (Smith Rara Arithmetica, p.195).
8o (158 x 92 mm). Printer's device on title and woodcut illustrations in text of finger reckoning, the line abacus, etc. (Light browning and minor marginal dampstaining.) 20th-century half morocco. Provenance: early marginalia at end.
Second edition, reprint of the 1539 Wechel edition. "The book sets forth the Roman and Greek notations, the fundamental operations both with the Hindu numerals and upon the line abachus, the finger notation as found in the works of Baeda, the astrological numerals of the Middle Ages, and the Boethian theory of numbers" (Smith Rara Arithmetica, p.195).