FRACTION(A)
Returns signed fractional part of A
Float FRACTION(Float A)
A - Float value to convert. If it is not of type float, it is implicitly converted to type float.
A float between >= 0 and < 1 for nonnegative input.
A float between >= -1 and < 0 for negative input.
> PRINT FRACTION(1.25)
0.250000
> PRINT FRACTION(-1.25)
-0.250000