[time-nuts] Measuring 10 MHz accurately.
Chuck Harris
cfharris at erols.com
Wed May 7 18:13:30 UTC 2008
Ed, k1ggi wrote:
> What is the difference between 1E-12, 10E-12, and 10^-12?
A little imprecision in the nomenclature, but it all should
mean the same thing.
1 part in 10E12 is the same as saying 1 part per 10E12. It is
the fraction:
1/[10E12], or 1.0 x 10E-12
...
>
> <snip>
> 2 parts in 10E-12
> <snip>
That would be 2 parts per 10E-12, which would be 2/[10E-12], a
very big number!
I am sure that the author of that snippet actually meant
2 parts per 10E12, or 2 x 10E-12.
Sort of mixing your metaphors
-Chuck Harris
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