Note 161 — Chapter VII

Cardan writes (De Subtilitate, p. 444) that Suisset [Richard Swineshead], who lived about 1350, was known as the Calculator; but Kästner [Gesch. der Math. I. 50] maintains that the title Calculator should be applied to the book rather than to the author, and hints that this misapprehension on Cardan's part shows that he knew of Suisset only by hearsay. The title of the copy of Suisset in the British Museum stands "Subtilissimi Doctoris Anglici Suiset. Calculationes Liber," Padue [1485]. Brunet gives one, "Opus aureum calculationum," Pavia, 1498.