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Returns an integer number between -1 and 1 that indicates if the number that is passed to the function is positive, negative, or zero.
Sgn (Tala)
Integer
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. | 
Sub ExampleSgn
    Print sgn(-10) REM returns -1
    Print sgn(0) REM returns 0
    Print sgn(10) REM returns 1
End Sub