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APPENDIX 1 THEORY OF THE PULVERISER As applied to Problems in Astronomy by BHATTA GOVINDA 1. The following twenty-twostanzas dealing with the theory of the pulveriser as applied to problems in astronomy have been quoted by Saikara Narayapa (in his commentary on LBl, wi, 18) from certain astronomical work (called Govinda-kti) of Acarya Bhatta Govinda. These throw new light on the subject and will, it is hoped, be of interest to historians of mathematics. 2-1 . 22. THEORY OF THE PU,VERSER As applied to Problems in Astronomy Introduction to the subject : i.e., “Although the entire working of the pulveriser has been described (by previous writers), but it is not clearly understood. So here I explain the theory of the pulveriser more fully.' यद्यप्युक्त सकलं तथापि नैतत् प्रतीयते कर्म । अत इह कुट्टाकार गणितं सम्यक् प्रवक्ष्यामि ।। १ ।। ८ The two kinds of the pulveriser :

.e., “The pulveriser is of two varieties, residual and non resअंdual. Of these, the non-residual pulveriser will be explained by me first. स पुन: कुट्टाकारो द्विविधस्तावन्निरग्रसाग्रतया । तत्र निरग्र वाच्यः कुट्टाकारो मया पूर्वम् ।। २ ।। An indeterminate cguation of the type

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