If I calculate combin(25, 10) in a cell I get the right answer, which is 3,268,760, and if I type that number directly into the isodd function, I get the right answer as well. So why is it that when I put isodd(combin(25, 10)) into a cell, I get the wrong answer?
MCweb welcome to the forum.
Good question. I get the same, and I have never encountered this before.
I'll pass this on to the community.
Dave
Is it a bug in Excel? I don't have Excel to test on here, but I note that both LibreOffice Calc and Gnumeric return FALSE for this particular example.
Originally Posted by shg
I just tried
=MOD(COMBIN(25,10),1)
It returns 0.999999999534338
So does
=MOD(FACT(25)/FACT(15)/FACT(10),1)
Appears to be a floating point issue.
Last edited by FlameRetired; 06-19-2019 at 06:48 PM.
A quick search of the net (search string, "Excel COMBIN function floating point") turned these up. Apparently you are not alone.
https://www.excelbanter.com/excel-wo...-integers.html
https://www.excelbanter.com/excel-wo...ntegers-2.html
https://www.excelforum.com/excel-for...bug-print.html
My search found in LibreOffice this is not a bug.
So to get rid of it, you'd need
Formula:
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ChemistB
My 2?
substitute commas with semi-colons if your region settings requires
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