The Hindu-Arabic Numerals c9.23

c9.23

⁶ Reinaud, *Mémoire sur l'Inde*, p. 399. In the fourteenth century one Sihāb al-Dīn wrote a work on which a scholiast to the Bodleian manuscript remarks: "The science is called Algobar because the inventor had the habit of writing the figures on a tablet covered with sand." [Gerhardt, *Études*, p. 11, note.]