KnowraDescartes' rule of signsLinked fromLinked fromThe 5 pages that link to Descartes' rule of signs, each with the reason it gives.All 5Related 3Compared with 2Multiplicity of a rootRelated: Its root counts include multiplicity, so repeated roots affect the bounds.Factor theoremCompared with: It estimates possible root counts rather than verifying an individual linear factor.Synthetic divisionRelated: It narrows possible roots before candidate values are tested with division.Sturm's theoremCompared with: It offers a simpler bound but does not generally determine an exact count in an arbitrary interval.Budan's theoremRelated: It supplies the sign-counting principle that Budan's theorem extends from coefficients to endpoint derivatives.