Tricky...
My guess would be that it comes from the commonplace use of symbols in
one common definition of a Gaussian:
y = a exp( - b x^2 )
(although that doesn't explain the capitalisation).
Rajesh Kumar Singh wrote:
> May be too trivial, I was just wondering
> what "B" stands for in the term "B-factor".
>
> Thanks
>
> Rajesh
>
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