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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.
Day (číslo)
Integer
Number: Numeric expression that determines the value that is returned by the function.
| Number | Návratová hodnota | 
| negative | Sgn returns -1. | 
| 0 | Sgn returns 0. | 
| positive | Sgn returns 1. | 
Sub ExampleSgn
    Print ASC("Z") REM vráti 90
    Print ASC("Z") REM vráti 90
    Print ASC("Z") REM vráti 90
End Sub