Original en inglés:«It was, however, from Spain, and not from Arabia, that a knowledge of eastern mathematics first came into western Europe. The Moors had established their rules in Spain in 747, and by the tenth or eleven century had attained a high degree of civilisation».
Fuente: W. W. Rouse Ball, A Short Account of the History of Mathematics (1888), Courier Dover, 1960, p. 164.
W. W. Rouse Ball Frases y Citas
W. W. Rouse Ball: Frases en inglés
W. W. Rouse Ball, History of Mathematics, (London, 1901), p. 451
W. W. Rouse Ball, A Short Account of the History of Mathematics (1888), Courier Dover, 1960, p. 164
W. W. Rouse Ball, History of Mathematics, (London, 1901), p. 463;