Chapter 8 - Exploring Polynomial Functions
Proof of Descartes Rule of Signs
An interesting discussion followed by a proof of Descartes Rule of Signs
is provided on this site. The article is by Scott Brodie. The web site is
Alexander Bogomolny's Interactive Mathematics Miscellany and Puzzles.
History of Descartes Rule of Signs
A short discussion of the history of Descartes Rule of Signs
and the nature of various mathematician's contribution to the "rule" in its
current state is provided on this site. Note the contribution of Gauss! The web site
is provided by the University of North Dakota in Grand Forks, North Dakota.
ExploreMath.com Activity: 4th Degree Polynomial
Experiment with the coefficients of a fourth degree polynomial and their effect on
the graph of the function.
Real Zeros of Polynomial Functions
A well written and concise summary that covers much of what we have talked about
regarding synthetic division, roots of polynomials, polynomial long division,
Descartes Rules of Signs, and more. A careful reading of this short summary will
should be very enlightening. The site is from Richland Community College in
Decatur, Illinois and is by , James Jones, Associate Professor of Mathematics.