# Function hex Format a number as hexadecimal. ## Syntax ```js math.hex(value) ``` ### Parameters Parameter | Type | Description --------- | ---- | ----------- `value` | number | Value to be stringified `wordSize` | number | Optional word size (see `format`) ### Returns Type | Description ---- | ----------- string | The formatted value ## Examples ```js //the following outputs "0xF0" math.hex(240) ``` ## See also [oct](oct.md), [bin](bin.md)