These classes implement the mapping between the grid coordinates (described by the `Mg3d`

class) and the physical coordinates [cf.
More...

## Classes | |

class | Lorene::Coord |

Active physical coordinates and mapping derivatives. More... | |

class | Lorene::Map |

Base class for coordinate mappings. More... | |

class | Lorene::Map_radial |

Base class for pure radial mappings. More... | |

class | Lorene::Map_af |

Affine radial mapping. More... | |

class | Lorene::Map_et |

Radial mapping of rather general form. More... | |

class | Lorene::Map_log |

Logarithmic radial mapping. More... | |

## Modules | |

Coord Arithmetics. | |

() |

These classes implement the mapping between the grid coordinates (described by the `Mg3d`

class) and the physical coordinates [cf.

Bonazzola, Gourgoulhon & Marck, *Phys*. *Rev*. *D* **58** , 104020 (1998)].

The class `Map`

and its derived classes determine the methods for partial derivatives with respect to the physical coordinates, as well as resolution of basic partial differential equations (e.g. Poisson equations).

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