# Permutation and combination

Calculator name | Summary |

Combination | Calculates the number of combinations of n things taken r at a time. |

Combination (table) | Calculates a table of the number of combinations of n things taken r at a time. |

Combination with repetition | Calculates the number of combinations with repetition of n things taken r at a time. |

Combination with repetition (table) | Calculates a table of the number of combinations with repetition of n things taken r at a time. |

Permutation | Calculates the number of permutations of n things taken r at a time. |

Permutation (table) | Calculates a table of the number of permutations of n things taken r at a time. |

Permutation with repetition | Calculates the number of permutations with repetition of n things taken r at a time. |

Permutation with repetition (table) | Calculates a table of the number of permutations with repetition of n things taken r at a time. |

Circular Permutation | Calculates the number of circular permutations of n things. |

Circular Permutation (table) | Calculates a table of the number of circular permutations with repetition of n things. |

Necklace Permutation | Calculates the number of necklace permutations of n things. |

Necklace Permutation (table) | Calculates a table of the number of necklace permutations with repetition of n things. |