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Abu'l Hasan al-Uqlidisi

Abu'l Hasan al-Uqlidisi, c. AD 920–c. AD 980, Arab mathematician working in Damascus and Baghdad. He wrote (952–53) a treatise on arithmetic and Arabic numerals that is the first known work to deal directly with decimal fractions.

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.

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