# Literal Number

A *literal number* is the base-10 representation
of a real number as an integer, as a fixed-point decimal number, or
in exponential notation. Use the Literal Number segment whenever you
see a reference to a literal number in a syntax diagram.

## Syntax

Element | Description | Restrictions | Syntax |
---|---|---|---|

digit |
Integer in range 0 through 9 | Must be an ASCII digit | Literal entered from the keyboard. |

## Usage

You cannot include
comma ( `,`

) or blank (ASCII 32) character. The unary
plus ( `+`

) or minus ( `-`

) sign can
precede a literal number, mantissa, or exponent.

You cannot include non-ASCII digits in literal numbers, such as the Hindi numbers that some nondefault locales support.

You cannot include non-ASCII digits in literal numbers.