KnowraBudan's theoremLinked fromLinked fromThe 2 pages that link to Budan's theorem, each with the reason it gives.All 2Compared with 2Descartes' rule of signsCompared with: It extends sign-variation reasoning to intervals rather than only positive and negative roots.Sturm's theoremCompared with: It gives bounds that can be less sharp than Sturm's exact count.