Archive for the ‘Misc. Math’ Category

The Descartes Rule of Sweeps

Something about┬áDescartes’ Rule of Signs┬áhad bothered me ever since my exposure to it in high school. As you know, the Rule of Signs runs something like this: For a polynomial with non-zero real coefficients, the number of positive roots is, at most, the number of sign changes in the coefficient sequence (ordered by power); more […]

Posted 20 July, 2012 by Blue in Misc. Math, Open Question