### Description

Clears (writes a 0 to) a bit of a numeric variable.

### Syntax

`bitClear(x, n)`

### Parameters

`x`

: the numeric variable whose bit to clear.

`n`

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

### Returns

`x`

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

is cleared.