# Pi()

Gets the mathematical constant p, accurate to 15 digits.
The number 3.14159265358979.

```
Pi( );
```

**Returns:** number

*This function does not take any arguments.*

# Examples

The following code example will output the value of pi returned from the pi() function.

```cfml
<cfoutput>#pi()#</cfoutput>
```







# Categories

[Numbers](../../categories/number.md), [Math](../../categories/math.md)