# [−][src]Module acap::cos

## Structs

Angular | Equips any coordinate space with the angular distance metric. |

AngularDistance | An angular distance. |

Cosine | Equips any coordinate space with the cosine distance function. |

InvalidAngleError | Error type for failed conversions from angles outside of |

PrenormAngular | Equips any coordinate space with the angular distance metric for pre-normalized (unit magnitude) points. |

PrenormCosine | Equips any coordinate space with the cosine distance function for pre-normalized (unit magnitude) points. |

## Functions

angular_distance | Compute the angular distance between two points. |

cosine_distance | Compute the cosine distance between two points. |

cosine_similarity | Compute the cosine |

prenorm_angular_distance | Compute the angular distance between two points. |

prenorm_cosine_distance | Compute the cosine distance between two pre-normalized (unit magnitude) points. |

prenorm_cosine_similarity | Compute the cosine |