Software & sources

Deterministic by design. Every result is computed in your browser from source you can read — there is zero AI or language-model involvement anywhere in this site.

How it is built

• Core: a dependency-free ES-module math library (Acklam inverse-normal, Lanczos log-gamma, and a regularized incomplete-beta for the Student-t distribution).
• Delivery: a single Cloudflare Worker with Workers Static Assets at the edge; pages cached with stale-while-revalidate. Installable as an offline PWA.
• Privacy: calculations never leave your device. The only server call is the contact form.
• License: proprietary. © 2026 Nrupal Akolkar. All rights reserved.

Live self-test

Run in your browser against NIST reference values right now: