The greatest mathematician of antiquity; born in Syracuse about 287
Abraham bar Ḥiyyah shows a perfect knowledge of the theories of Archimedes in his "Encyclopedia of Mathematical Sciences" (compare Steinschneider, "Hebr. Bibl." vii. 92); and the same is true of Abraham ibn Ezra, in his astronomical work "Reshit Ḥokmah."
- Steinschneider, Hebr. Uebers. § 310;
- Z. D. M. G. l. 172 et seq.