# Budan's theorem

> upper bound and parity of the number of real roots of a polynomial in an interval

**Wikidata**: [Q3527026](https://www.wikidata.org/wiki/Q3527026)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Budan's_theorem)  
**Source**: https://4ort.xyz/entity/budan-s-theorem