`Abs`
| Return the absolute value of a number. |

`Ceil`
| Return the smallest integral value that is not less than a number. |

`DEC`
| Decrement a variable. |

`Fix`
| Return the integer part of a number. |

`Floor`
| Return the largest integral value that is not greater than a number. |

`Frac`
| Return the fractional part of a number. |

`INC`
| Increments a variable. |

`Int`
| Return the mathematical integer part of a number. |

`Max`
| Return the maximum number. |

`Min`
| Return the minimum number. |

`Round`
| Round a number. |

`Sgn`
| Return the sign of a number. |