### Description

Sets (writes a 1 to) a bit of a numeric variable.

### Syntax

`bitSet(x, n)`

### Parameters

`x`

: the numeric variable whose bit to set.

`n`

: which bit to set, starting at 0 for the least-significant (rightmost) bit.

### Returns

`x`

: the value of the numeric variable after the bit at position `n`

is set.