1NTRODUCTION xlvii tokaloka-gahta, Prabhakara-ganita, Tantrapradipa of Yogi, Parahitaganita of Haridatta and Mayamata. Among the less known astrological authorities cited by Suryadeva in his Jatakapaddhatiyakhya are śrdhara, Maņintha, Manu, Maya, Bādarāyaņa, Devakirti, Satya and Krsnaditya. Several anonymous verses are also cited with one or other of the following prefixes: "Ganitavidah', 'Purvacaryah', 'Sampradaya vidah' and Sampradaya-siddha'. 1. YALLAYA AND HIS SUPPLEMENT TO SURYADEVA's COMMENTARY 1. Personal details Suryadeva had in Yallaya, a 15th century astronomer of the Andhra country, an elaborate supplementer to his commentary. Yallaya found that Suryadeva's commentary was rather brief, even as Suryadeva himself has indicated towards its beginning. Justifying his suppleit mentation and indicating its scope, Yallaya states at the beginning: Since the commentary composed by Siryadeva, a master of the science words, is brief, the commentary of Suryadeva-Yajvan is (first) written wn in entirety for each arya-sutra of Aryabhata which he has commented, and wherever that commentary is brief, further commentary in supplementation thereof and alternate illustrative examples are added by me, Yallaya by name, learned, well read in many works of Pasiganita, proficient in the three branches (of Jyotisa), possessing command over language by virtue of a boon bestowed by Lord Siva, son of Śridhararya and disciple of Suryacarya son of Baladitya, for the benefit of those astronomers who desire to know (in detail), the meaning of the Gaņita, Kālakriyā and Gola padas (of the Aryabhaṭīya) composed by Aryabhata.' _wahanu diff 1. Srīdhara, author of Patiganita (c. 900), is apparently 1tterent from Srīdhara, authority on astrology, since the latter has followed Sripati's Jātakapaddhati (A. D. 1039), vide, Sn. 12. 2 on P. xlv, above. 2. Cf. : tificatiyesiragareisa. It Isaa Intro. verse 3, p. 1. ཙམིགས་ α. : प्रचुरतरशब्दशास्त्रविदा सूर्यदेवेन यज्वना कृतस्य व्याख्यानस्य W आर्यभटोक्त-गणित-कालक्रिया-गोलपादार्थान् ज्ञातुमिच्छतां दैवज्ञानामुपकाराय ية કુંટું:
