yes i noticed that the conditions werent exclusive but thought the formula
was "illustrative" only
--
paul
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"RagDyer" wrote:

You have to re-think your formula!

It will *always* perform the *first* calculation:
LOG(C3/F3)

Because ... even if D3 is <1 (0.05), it's *still* 0 !
SO, the first argument is True (0), and the first calculation will execute,
and the formula *stops* calculating.
It never gets to even evaluate the second argument, much less calculate it.
--
Regards,

RD

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"Kaputa" wrote in message
...
The same cell has two formulas, IF(D30,LOG(C3/F3),IF(D3<1,LOG(C3/10)).
For
example, if C3 is 1.0E+06, D3 is 100, then F3 will be 1.0E+03 (due to
another
formula), and the response for the first part should read 3.0. If D3 is
0,
F3 will be <10 (due to another formula), and the response should read
5.0,
not simply 5.0.