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» MAA Online Book Reviews    Indexed by author, title, topic and reviewer.    http://www.maa.org/reviews/reviews.html

» Mathematical Constants    Website of the book by Steven R. Finch. With sample chapters, supplementary materials and further resources.    http://pauillac.inria.fr/algo/bsolve/

» Non-Newtonian Calculus by Michael Grossman    Includes discussions of general theory and heuristic guides for application.    http://www.geocities.com/nonnewtoniancalculus/

» The Classification of the Polynomial with Real Coefficients    Explains a theory that the algorithm that every polynomial transforms to a source form. On-line summary, CD version.    http://www.nabla.hr/