Abu'l-Hasan al-Uqlidisi
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Abu'l Hasan Ahmad ibn Ibrahim Al-Uqlidisi was an Arab mathematician, possibly from Damascus. He wrote the earliest surviving book on the positional use of the Arabic numerals, around 952. It is especially notable for its treatment of decimal fractions, and that it showed how to carry out calculations without deletions.
[edit] References
- O'Connor, John J. & Robertson, Edmund F., “Abu'l Hasan Ahmad ibn Ibrahim Al-Uqlidisi”, MacTutor History of Mathematics archive