सिद्धान्तशिरोमणि: गणिताध्याय (भास्कराचार्य - ग्रहगणित, मध्यमाधिकार व स्पष्टाधिकार सटीक)

28 Comm. Let x and y be the numbers of sidereal revolu- tions of the Moon and the Sun respectively. The x—y is evidently the number of lunations as mentioned before. Also 12 y is the number of solar months which if subtracted from the number of lunations will give the number of Adhimāsas ie x — y — 12 y = x — 13 y = Adhikamāsas as mentioned. This completes the Bhaganādhyāya of Madhyādhi- kāra.