KnowraSturm's theoremLinked fromLinked fromThe 4 pages that link to Sturm's theorem, each with the reason it gives.All 4Related 2Compared with 2Descartes' rule of signsCompared with: It can determine exact interval root counts when Descartes' rule gives only an upper bound.Budan's theoremCompared with: Sturm's later method sharpened interval root counting beyond Budan's upper-bound approach.