The Hindu-Arabic Numerals c5.15

c5.15

² This learned scholar, teacher of O'Creat who wrote the *Helceph* ("*Prologus N. Ocreati in Helceph ad Adelardum Batensem magistrum suum*"), studied in Toledo, learned Arabic, traveled as far east as Egypt, and brought from the Levant numerous manuscripts for study and translation. See Henry in the *Abhandlungen zur Geschichte der Mathematik*, Vol. III, p. 131; Woepcke in *Propagation*, p. 518.