History of Hindu Mathematics: A Source Book v1.c7.s17.t5.8
History of Hindu Mathematics: A Source Book v1.c7.s17.t5.8
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v1.c7.s17.t5.8
It has been stated by Ali bin Abil-Regal Abul-Hasan, called Abenragel, in the preface to his treatise on astronomy that the invention of reckoning with nine ciphers is due to the Hindu philosophers.³