Jyotihshastra: Astral and Mathematical Literature c5.s2.4

c5.s2.4

⁶² After the work of C. M. WHISH, “On the Hindú Quadrature of the Circle and the Infinite Series of the Proportion of the Circumference to the Diameter in Four Śāstras, the Tantrasangraham, Yucti Bhāshá, Carana Paddhati, and Sadratnamálá,” TRAS 3 (1830), 509–523, the investigation of this topic was revived by C. T. RAJAGOPAL; see K. M. MARAR and C. T. RAJAGOPAL, “On the Hindu Quadrature of the Circle,” JBBRAS, NS 20 (1944), 65–82, and “Gregory’s Series in the Mathematical Literature of Kerala,” MS 13 (1945), 92–98; C. T. RAJAGOPAL and A. VENKATARAMAN, “The Sine and Cosine Power-series in Hindu Mathematics,” JRASB/S 15 (1949), 1–13; C. T. RAJAGOPAL, “A Neglected Chapter of Hindu Mathematics,” SM 15 (1949), 201–209; C. T. RAJAGOPAL and T. V. V. AIYAR, “In the Hindu Proof of Gregory’s Series,” SM 17 (1951), 65–74, and “A Hindu Approximation to Pi,” SM 18 (1952), 25–30; and C. T. RAJAGOPAL and M. S. RANGACHARI, “On an Untapped Source of Medieval Keralese Mathematics,” AHES 18 (1978), 89–102. His investigations have been continued by T. A. SARASWATHI, “The Development of Mathematical Series in India after Bhāskara II,” BNISI 21 (1963), 320–343; by