The Texts · Gaṇita / Siddhānta — the computational lineage
Siddhānta Darpaṇa
सिद्धान्तदर्पण
Sāmanta Candraśekhara (Pathani Samanta), Odisha · Completed 1869; printed 1899 · ganita
What this text is
The last major naked-eye observational siddhānta — the tradition auditing itself against the sky.
The traditional siddhānta framework with the author’s own measured corrections, notably to lunar terms.
Its role in this app
Heritage precedent, inside the tradition itself, for exactly what our accuracy doctrine does with modern oracles.
Editions our research holds
upadhyay-vol-1
Arun Kumar Upadhyay edition vol. 1 (Nag Publications) — unusually clean.
in copyright — read for verification only, never republished · scan quality: good
upadhyay-vol-2
Upadhyay edition vol. 2.
in copyright — read for verification only, never republished · scan quality: poor
bhumika
Introduction, DOCX supplement.
copyright status unclear — treated as in-copyright
ganita-khanda
Gaṇita section, DOCX supplement.
copyright status unclear — treated as in-copyright
Readings on this site cite texts at chapter level, with verse numbers only where our research verified the passage in a named edition. How conflicts between texts are resolved is documented on the conventions page.