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Subject: Re: Log base 2
From: Jack Peel (jhp_at_cypress.com)
Date: 2002-09-19


But don't you want a log base 20 ? (or am I remebering dB wrong ? )
I should probably go do some research before I start popping off :-)

Jack

Philipp Pertermann wrote:

> From: "Jeff Waltzer"
>
> >
> > One could do a primitive approximation of a Log base 2
> function by
> > rotating the bits to find the left most location set bit.
> This would be
> > good if all you need is a number from 0 to 15.
>
> I believe I already found the perfect link. I just hate math
> and have been to lazy to understand that yet.
> http://www.dattalo.com/technical/theory/logs.html
>
> Phil



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