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# Sgn Function

Returns an integer number between -1 and 1 that indicates if the number that is passed to the function is positive, negative, or zero.

## Notkun:

    Sgn (Tala)

## Skilagildi:

Integer

## Viðföng:

Number: Numeric expression that determines the value that is returned by the function.

Number | Skilagildi
neikvætt | Sgn returns -1.
0 | Sgn returns 0.
jákvætt | Sgn returns 1.

### Error codes:

5 Ógilt kall á stefju

## Dæmi:

    Sub ExampleSgn
        Print sgn(-10) REM returns -1
        Print sgn(0) REM returns 0
        Print sgn(10) REM returns 1
    End Sub