The Astronomical Observatories of Jai Singh c22.s1.t1.3

c22.s1.t1.3

The Greek system agreed with the *abjad* as far as 80, but the portion from 90 to 300 corresponded with the *abjad* from 100 to 400. The later numbers differed considerably. In deciphering the engraved numbers on the astrolabe there are sometimes apparent ambiguities to be cleared up, owing partly, to the omission of diacritical marks.¹