Mathematicians like Brahmagupta (in 628 AD) and Bhāskara I (in 629 AD) made contributions in this area as did other mathematicians who followed.
Matematikawan sakadi Brahmagupta (warsa 628 M) lan Bhāskara (warsa 629 M) ngicenin kontribusi widang puniki sakadi napi ja matematikawan liyanan sane nyarengin.