Gopalakrishna Siddhanti, Siddhānti is a title denoting an expert in the Siddhāntas, the traditional Indian systems of astronomy and mathematics.

Rallabhandi A traditional Telugu Brahmin family name.

The Mathematician’s Delight original: "Gaṇakarañjani". From 'Gaṇa' (calculation/numbers) and 'Rañjani' (delighting or pleasing).

Madras, 1912 Now known as Chennai, the major intellectual and administrative hub of South India at the time of publication.

Record no. 536

The listed vocabulary refers to the author Rallabhandi Gopalakrishna Siddhanti, his scholarly title, the title of the mathematical work, and the city of Madras.