On Fri, 14 Jul 2006 16:46:01 -0700, dwright
wrote:

Open an Excel spreadsheet, format a column as numeric, no decimals, and paste
in the following 8 values:

442,528
1,477,789
17,942
130,714
84,053
524,606
1,724,962
93,586

Sum them. You will get the answer 4,496,179. The correct answer is
4,496,180. I would suggest you incorporate round-off error correction
routines in your math calculations. This is strictly a newbie error, and I'm
frankly amazed that you haven't caught it yet.


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Go back to your worksheet which shows this "error".

Select the cells and reformat them as number with 15 decimals.

What do you see?
--ron