[comment]: # ({ade3849d-ade3849d})
# 6 Operator functions

All functions listed here are supported in:

-   [Trigger expressions](/manual/config/triggers/expression)
-   [Calculated items](/manual/config/items/itemtypes/calculated)

Some general notes on function parameters:

-   Function parameters are separated by a comma
-   Expressions are accepted as parameters

|FUNCTION|<|<|<|
|--------|-|-|-|
|<|**Description**|**Function-specific parameters**|**Comments**|
|**between** (value,min,max)|<|<|<|
|<|Check if a value belongs to the given range.|**value** - value to check<br>**min** - minimum value<br>**max** - maximum value|Supported value types: integer, float<br><br>Returns:<br>1 - in range<br>0 - otherwise<br><br>Example:<br>=> **between**(last(/host/key),**1**,**10**)=1 - trigger if the value is between 1 and 10.|
|**in** (value,value1,value2,...valueN)|<|<|<|
|<|Check if a value is equal to at least one of the listed values.|**value** - value to check<br>**value1,value2,...valueN** - listed values (string values must be double-quoted)|Supported value types: all<br><br>Returns:<br>1 - if equal<br>0 - otherwise<br><br>The value is compared to the listed values as numbers, if all of these values can be converted to numeric; otherwise compared as strings.<br><br>Example:<br>=> **in**(last(/host/key),**5**,**10**)=1 - trigger if the last value is equal to 5 or 10<br>=> **in**(**"text"**, last(/host/key),last(/host/key,\#2))=1 - trigger if "text" is equal to either of the last 2 values.|

[comment]: # ({/ade3849d-ade3849d})