पृष्ठम्:स्फुटचन्द्राप्तिः.djvu/२

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The Sphutacandrapti of Madhava, edited here for the first time from its only known manuscript, enun- ciates an easy and ingeni- ous method which would enable the accurate com- putation of the the Moon at intervals of about 40 minutes each throughout the day. The Chart pre- pared for the above pur- pose is so designed that, with minor changes, it could be used for several days in succession. The author, MSdhava of Sahgamagrama, is an astute astronomer of medi- aeval Kerala (c. 1340-1425), who has several works to his credit. He is widely quoted by later astonomers of Kerala and is also reputed for his enunciation of formulae for the accu- rate determination of the circumference of a circle and the nature of 7T by the method of .indetermin ate series, a method which was re-discovered in Europe about three centu- ries later by James Gregory (1638-75) and Wiihelm Leibnitz (1646-1716). Price ; Rs„ 6-00