# Make documentation for IN function more clear

**4**

*Originally posted on UserVoice*

The documentation for the IN function is somewhat unclear. The function definition shows examples such as:

IN(number x, number y1, ... yn)

and

IN(number x, y1...yn)

Whereas it's usage is:

x IN (y1, ... yn)

and

x IN (y1...yn)

respectively

This is confusing as x does not appear in the function arguments.

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