The Hindu-Arabic Numerals c9.133

c9.133

⁴ See also P. Tannery, "Notes sur la pseudo-géométrie de Boèce," in *Bibliotheca Mathematica*, Vol. I (3), p. 39. This is not the geometry in two books in which are mentioned the numerals. There is a manuscript of this pseudo-geometry of the ninth century, but the earliest one of the other work is of the eleventh century (Tannery), unless the Vatican codex is of the tenth century as Friedlein (p. 372) asserts.