Frac Function
Returns the fractional portion of a number.
Frac (Number)
Double
Number: Any valid numeric expression.
D'oh! You found a bug (text/sbasic/shared/00000003.xhp#err5 not found).
Sub ExampleFrac
Print Frac(3.99)
Print Frac(0)
Print Frac(-3.14159)
End Sub