CLAVIUS, Christoph. Epitome arithmeticae practica.
Roma, Dominici Basae, 1583.
Small 8vo (157x101 mm), 219-(13) pages. binding : Nineteenth-century full stiff vellum, flat spine, title in gilt on lettering-piece. Minor repairs on margin of page 41 and at the bottom of the last leaf.
Scarce first edition of this work which is known to have influenced Descartes and Leibniz.
references: Honeyman [II, 710], Smith [p.375-378 : "This work is an attempt at a practical arithmetic. It is conservative in treatment, the applications being confined, as was the custom, largely to the rule of three ... it was influential in the classical schools"].
Price : 1800 €