History of Hindu Mathematics: A Source Book v2.c17.s8.32
History of Hindu Mathematics: A Source Book v2.c17.s8.32
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v2.c17.s8.32
The above two methods of Brahmagupta are identical with those employed before him by Āryabhaṭa I (499). The root of the quadratic equation for the number of terms of an A.P. is given by Brahmagupta in the first form:³