[RESOLVED] Math problem

[re_turner_jr]

I getting erroneous results from a simple add and subtract loop. I'm sure it's something simple, but I don't see it.

On the form is an array of textboxes and a label

private sub xxxxxxxx
    Dim Tot As Double
    Dim X As Integer
    Tot = 0
    For X = 1 To 8
        If TxtFld(X).Text <> "" Then
            If X <= 3 Then
                Tot = Tot + CDbl(TxtFld(X).Text)
            Else
                Tot = Tot - CDbl(TxtFld(X).Text)
            End If
        End If
    Next
    LblBal.Caption = CStr(Tot)
end sub

if txtfld(1) = 10
& txtlfd(4) = 5
& txtfld(6) = 5.1

then it should be
10 - 5 - 5.1 = -0.1
but I get -9.99999 ?????

what gives?

-RT

The actual answer given by vb is -9.99999999999943E-02

[LaVolpe]

There are numerous posts on this site regarding the Double variable type and how it returns values. You can search them for more education/information. In the mean time, if you are only concerned with a max of 4 decimal places, recommend using Currency vs Double and CCur vs CDbl