Hello,

I am exploring fibonacci numbers, and figured a spreadsheet would be the 
quickest way to generate them. I created a spreadsheet in OOo, and was 
looking through the results when I noticed some of the numbers don't add up 
correctly, admittedly they are quite large numbers, but still ...

example follows (and I attached the ods file as well)

just using the very first row, cell A1 has a 1 as does cell B1 cell  C1 has 
the expression  =a1+b1  I then copied and pasted C1 to the range of D1 to 
FT1, relying on OOo to change the references in the usual way.

I changed the formatting to show full numbers instead of notation, and was 
widening the cells to be able to read the larger numbers instead of ### . 
Then I noticed that some of the numbers have a lot of trailing zeros, this 
just shouldn't be, so I went back to the begining of this discrepancy. And 
at cells BX1 to BZ1 I found the begining of this problem. If you add the 
numbers at BX1+BY1 with a calc.exe you will find that the answer in BZ1 is 
incorrect.

3,416,454,622,906,710 added to 5,527,939,700,884,760  is 
8,944,394,323,791,470 and NOT  8,944,394,323,791,460.

I promise I'm not using a Pentium with the fdiv bug :)   .. actually using 
an Athlon64 3800+

Thank you,
Charles

"Theory is when you know something, but it doesn't work. Practice is when 
something works, but you don't know why. Microsoft programmers combine 
theory and practice: nothing works and they don't know why." 

Attachment: fibonacci numbers.ods
Description: application/vnd.oasis.opendocument.spreadsheet

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