_Added in 4.3_

*$cbrt(N)*

Returns the "cube root":https://en.wikipedia.org/wiki/Cube_root for the number N.

*Parameters*

table(ktable).
|*Parameter*|*Description*|
| N | The number to calculate the cube root for. |

*Example*

<pre>
//echo -ag  The cube root for 42 is $cbrt(42)
</pre>