The diameter multiplied by four and divided by unity (is found and saved). Again the products of the diameter and four are divided by the odd numbers like three, five, etc., and the results are subtracted and added in order.

Shankara Variyar (1500–1560) in his Kriyakramakari quotes the verse of Madhava. Ramasubramanian, K. and M. D. Srinivas. ‘Development of Calculus in India’. In Studies in the History of Indian Mathematics, edited by C. S. Seshadri, pp. 201- 286. New Delhi: Hindustan Book Agency, 2010.:व््ययासे वारिधिनिहते रूपहृते व््ययाससागराभिहते।त्रिशरादिविषमसङ््खख््ययाभक्तमृणं स््ववं पृथक् क्रमात् कुर््ययात्॥

quoted in : Bhaskar Kamble, The Imperishable Seed: How Hindu Mathematics Changed the World and why this History was Erased, Garuda Prakashan Private Limited, 2022 ISBN 9798885750189