qb45qck.hlp (Table of Contents; Topic list)
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SGN Function QuickSCREEN
  QuickSCREEN      Details      Example      Contents      Index
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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.