Census of the Exact Sciences in Sanskrit, Series A v1.c7.460

v1.c7.460

2. The ārdharātrika system. This system was expounded in a now lost work which was utilized by Bhāskara (fl. 629) and Brahmagupta (fl. 665); it probably also preceded and influenced the version of the Sūryasiddhānta produced by Lāṭadeva (fl. 505). For its parameters see P. C. Sengupta [1930]. For its influence on the Sasanian and Islamic astronomy, see E. S. Kennedy [1958]; and D. Pingree [1962]; [1968a]; and [1968b].