The Hindu-Arabic Numerals c11.117

c11.117

So little effect did the teachings of Gerbert have in making known the new numerals, that O’Creat, who lived a century later, a friend and pupil of Adelhard of Bath, used the zero with the Roman characters, in contrast to Gerbert's use of the ġobār forms without the zero.¹ O'Creat uses three forms for zero, o, ō, and τ, as in Maximus Planudes. With this use of the zero goes, naturally, a place value, for he writes III III for 33, ICCOO and I. II. τ. τ for 1200, I. O. VIII. IX for 1089, and I. IIII. IIII. ττττ for the square of 1200.