"On a plane surface describe a circle of any specified radius with a pair of compasses. Mark on its circumference 360 degrees. Draw the east-to-west and north-to-south lines through its center. These lines will divide the circle into quadrants, which should be taken into consideration in the leftwise manner (i.e. anti-clockwise)."
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Datta, Bibhutibhushan, and Avadesh Narayan Singh.———. ‘Hindu Trigonometry’ (revised by K.S. Shukla). Indian Journal of History of Science 18 (1) (1983): pp. 39-108. quoted from Bhaskar Kamble, The Imperishable Seed: How Hindu Mathematics Changed the World and why this History was Erased, Garuda Prakashan Private Limited, 2022 ISBN 9798885750189
https://en.wikiquote.org/wiki/Bh%C4%81skara_II
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Bhāskara II
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