# Unix - Shell Builtin Mathematical Functions

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The most of the part of this tutorial covered Bourne Shell but this page list down all the mathematical builti-in functions available in **Korn** Shell.

The Korn shell provides access to the standard set of mathematical functions. They are called using C function call syntax.

Function | Description |
---|---|

abs | Absolute value |

log | Natural logarithm |

acos | Arc cosine |

sin | Sine |

asin | Arc sine |

sinh | Hyperbolic sine |

cos | Cosine |

sqrt | Square root |

cosh | Hyperbolic cosine |

tan | Tangent |

exp | Exponential function |

tanh | Hyperbolic tangent |

int | Integer part of floating-point number |