NAME
  ABS, SGN Functions

SYNOPSIS
  ABS(numeric-expression)
  SGN(numeric-expression)
      o numeric-expression    Any numeric expression.

DESCRIPTION
  ABS returns the absolute value of a number.
  SGN returns a value indicating the sign of a numeric expression (1 if the
  expression is positive, 0 if it is zero, or -1 if it is negative).

  Example:
      PRINT ABS(45.5 - 100!)           'Output is:  54.5
      PRINT SGN(1), SGN(-1), SGN(0)    'Output is:  1  -1  0

SEE ALSO
  none