Title | **Solution formulas for cubic equations without or with constraints** |

Author(s) | Hoon Hong, Dongming Wang, Ting Zhao |

Type | Article in Journal |

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

Keywords | Cubic polynomial, Solution formula, Root convention, Constraint |

ISSN | 0747-7171 |

URL |
http://www.sciencedirect.com/science/article/pii/S0747717111000344 |

Language | English |

Journal | Journal of Symbolic Computation |

Volume | 46 |

Number | 8 |

Pages | 904 - 918 |

Year | 2011 |

Edition | 0 |

Translation |
No |

Refereed |
No |