ब्राह्मस्फुटसिद्धान्त (ब्रह्मगुप्त - शून्य, कुट्टक, बीजगणित एवं सम्पूर्ण २१ अध्याय सान्वय सटीक)

REFERENCE TO ĀRYABHAṬA 53
These two verses show that Brahmagupta was not hostile to Ārya-
bhaṭa when he wrote this Khaṇḍakhādyaka ; he merely intends
presenting the subject matter on simple lines and furnishing
the results obtained by Āryabhaṭa in a simpler way.
In the following verse of the same chapter, he refers to
Āryabhaṭa’s midnight day-reckoning system :
The mean Saturn diminished by 3 seconds, the Śīghrocca
of Mercury diminished by 22 seconds, the mean Mars
increased by 2 seconds and the mean Jupiter increased by
4 seconds are equal to the respective mean planets of Ārya-
bhaṭa's “midnight-system”.¹
In the Appendix of the Khaṇḍakhādyaka known as Khaṇḍa-
khādyakottara, we again find a few verses where the name of
Āryabhaṭa occurs; Three of these verses have been reproduced
from the Brāhmasphuṭasiddhānta (BrSpSi I. 62, 6