◄QuickSCREEN► ◄Details► ◄Example► ◄Contents► ◄Index► ────────────────────────────────────────────────────────────────────────────── SGN - a math function that indicates the sign of a numeric expression Syntax SGN(numeric-expression) ■ If numeric-expression is positive, the SGN function returns +1. ■ If numeric-expression is zero, the SGN function returns 0. ■ If numeric-expression is negative, the SGN function returns -1.