拍品專文
'Girolana Cardan (1501-76) formulated "Cardan's rule" for the solution of cubic equations, which he derived from Tartaglia, and published as his own. Cardan was an extensive traveller, and occupied chairs at Milan and Pavia. He was recognised as a distinguished astrologer, and his work on algebra, Ars Magna de rebus algebraicis, which appeared in 1545, marked the beginning of a new epoch' (Thornton and Tully).