Solution Formulas for Cubic Equations Without or With ConstraintsReport as inadecuate

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* Corresponding author 1 SALSA - Solvers for Algebraic Systems and Applications LIP6 - Laboratoire d-Informatique de Paris 6, Inria Paris-Rocquencourt 2 School of Mathematics and Systems Science 3 NCSU - Department of Mathematics Raleigh

Abstract : We present a convention for square-cubic root which provides correct interpretations of Lagrange-s formula for all cubic polynomial equations with real coefficients. Using this convention, we also present a real solution formulas for the general cubic equation with real coefficients under equality and inequality constraints.

Keywords : constraint cubic polynomial solution formula root convention

Author: Ting Zhao - Dongming Wang - Hoon Hong -



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