# SGN

Revision as of 02:36, 30 July 2019 by imported>Keybone (Added missing comma, fixed wording of function description to make less ambiguous.)

The **SGN** function returns the sign of a number value.

## Syntax

- sign% = SGN(value)

- Returns -1 when a sign is negative, 0 when a value is zero, or 1 when a value is positive.
- Function is used to store the original sign of a number.
**QB64**allows programs to return only _UNSIGNED variable values using a _DEFINE statement.

*Example:* Checking and changing negative values to positive ones.

n = -100
IF SGN(n) = -1 THEN n = ABS(n)
PRINT n * *

100

*See also:*

*Navigation:*