# Maths

Less than 1 minuteAbout 245 words

This chapter mainly introduces the following functions:

math functions | descriptions |
---|---|

ABS() | Returns the absolute value of the field value. |

ACOS() | Returns the arccosine (in radians) of the field value. Field values must be between -1 and 1 |

ASIN() | Returns the arcsine (in radians) of the field value. Field values must be between -1 and 1 |

COS() | Returns the cosine of the field value |

SIN() | Returns the sine of the field value |

TAN() | Returns the tangent of the field value |

ATAN() | Returns the arctangent (in radians) of the field value. Field values must be between -1 and 1 |

ATAN2() | Returns the the arctangent of y/x in radians |

CEIL() | Returns the subsequent value rounded up to the nearest integer |

EXP() | Returns the exponential of the field value |

FLOOR() | Returns the subsequent value rounded down to the nearest integer |

LN() | Returns the natural logarithm of the field value |

LOG() | Returns the logarithm of the field value with base `b` |

LOG2() | Returns the logarithm of the field value to the base `2` |

LOG10() | Returns the logarithm of the field value to the base `10` |

POW() | Returns the field value to the power of `x` |

ROUND() | Returns the subsequent value rounded to the nearest integer |

SQRT() | Returns the square root of field value |

Tips

These methods are compatible with the usage of InfluxDB. You can refer to the corresponding function usage of InfluxDB

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