# Viète's formula

> English word · Proper noun

## Definitions
1. An infinite product of nested radicals representing the constant pi: specifically, 2/π=

## Etymology
Named after François Viète (1540–1603), who published it in 1593 in his work Variorum de rebus mathematicis responsorum, liber VIII.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/viete-s-formula