# Cubic Command

From GeoGebra Manual

- Cubic( <Point>, <Point>, <Point>, <Number> )
- Gives
*n*-th triangle cubic of the given triangle*ABC*. **Example:**Let*A = (0, 1)*,*B = (2, 1)*and*C = (1, 2)*.`Cubic(A, B, C, 2)`

yields the implicit curve*-x³ + 3x² + 5x y² - 14x y + 7x - 5y² + 14y = 9*.

**Note:**This command is in development, set of supported index

*n*is changing.

## Some common triangle cubics

Index n | Cubic |
---|---|

1 | Neuberg Cubic |

2 | Thomson Cubic |

3 | McCay Cubic |

4 | Darboux Cubic |

5 | Napoleon/Feuerbach Cubic |

7 | Lucas Cubic |

17 | 1st Brocard Cubic |

18 | 2nd Brocard Cubic |

## Comments