A Review on Development Course of Formula for Roots of Equation

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This essay starting with the origin of thought about equation, discusses the development course of radical formula for equation from simple to higher degree, introduces the derivation method of radical formula for cubic equation and quartic equation, and compares two methods of radical formula for quartic equation(Ferrali method and Descartes method). There is no general formula of root for equation of 5-th order or higher degree. Eventually, this essay expounds the development process of equation’s contributions to algebra field.

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418-422

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February 2011

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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