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in cell a1 i have 4099227911503, i know that if i add these numbers up, the sum would be 52. how do i write a formula that will do the same thing. i need to add the numbers with in the cell so that i can do a mod 10 to get the check digit. i am creating a data base for merging with envelopes and i need to put the planet code "a1" with a check digit
This function will add up all the numbers in a cell, provided it is applied to a numeric cell. Once pasted into your VBE use it like you would a formula, thus:
=Adder(A1) will perform the operation on cell A1.
Function Adder(InThis)
d = 0
a = Len(InThis)
For b = 1 To a
c = Mid(InThis, b, 1)
d = d + c
Next b
Adder = d
End Function
On Wed, 6 Jul 2005 11:57:49 -0500, the-charles
<the-charles.1rrcil_1120669560.9455@excelforum-nospam.com> wrote:
>
>in cell a1 i have 4099227911503, i know that if i add these numbers up,
>the sum would be 52. how do i write a formula that will do the same
>thing. i need to add the numbers with in the cell so that i can do a
>mod 10 to get the check digit. i am creating a data base for merging
>with envelopes and i need to put the planet code "a1" with a check
>digit
You may use this array formula:
=SUM(--MID(A1,ROW(INDIRECT("1:"&LEN(A1))),1))
To enter an array formula, after typing or pasting it into the formula bar,
hold down <ctrl><shift> while hitting <enter>. Excel will place braces {...}
around the formula.
Linear Mode
