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Re: How did Niccolo Tartaglia solve cubic equations with no x term?
Posted:
Oct 12, 2006 8:58 PM


Geoff wrote:
> I have recently read Mario Livio's book "The Equation That Couldn't Be > Solved", and in an early chapter he refers to how Niccolo Tartaglia managed > to find a solution for the equation x^3 + 3x^2 = 5. > > That was not the first occasion that I have read that Tartaglia had managed > to find a solution for cubic equations with no x term (and that he > subsequently also figured out how to also solve cubic equations having no > x^2 term instead), but reading that book recently has left me wondering, yet > again, exactly how he would have figured out how to solve such equations > (with no x term).
The new book Galois Theory for Beginners (English translation of a German book) gives some of the history, and shows geometric diagrams for solving cubic equations sixteenthcentury style.
 Karl M. Bunday P.O. Box 1456, Minnetonka MN 55345 Learn in Freedom (TM) http://learninfreedom.org/ remove ".de" to email



