Ganita Bharati
Published in Association with Bulletin of The Indian Society for History of Mathematics
Current Volume: 45 (2023 )
ISSN: 0970-0307
Periodicity: Half-Yearly
Month(s) of Publication: June & December
Subject: Mathematics
DOI: https://doi.org/10.32381/GB
Online Access is Free for Life Member
From Verses in Text to Numerical Table — The Treatment of Solar Declination and Lunar Latitude in Bha-skara II’s Karan.akutu-hala and the Related Tabular Work, the Brahmatulyasa-ran.
By : Clemency Montelle
Page No: 13-25
Abstract
A twelfth century set of astronomical tables, the Brahmatulyasa-ran. , poses some interesting challenges for the modern historian. While these tables exhibit a range of standard issues that numerical data typically present, their circumstances and mathematical structure are further complicated by the fact that they are purported to be a recasting of another work by Bhaskara II that was originally composed in verse, the Karan.akutu- hala (epoch 1183 CE). We explore this relationship by considering the tables for solar declination and lunar latitude and comparing them to their textual counterparts.