Bounds On Positive Polynomial Roots
There also exist bounds on just the positive roots of polynomials; these bounds are of extreme importance and have been developed by Akritas, StrzeboĊski and Vigklas based on previous work by Doru Stefanescu. They are used in the computer algebra systems Mathematica, Sage, SymPy, Xcas etc. and are described in P. S. Vigklas' Ph.D. Thesis and in.
Read more about this topic: Properties Of Polynomial Roots
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