Olin, I am stuck with the values as they are.  I can scale them but thats
about all!

David

> -----Original Message-----
> From: pic microcontroller discussion list
> [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Olin Lathrop
> Sent: Sunday, September 16, 2001 9:36 PM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: [PIC]: PIC Maths
>
>
> > I have two 8-bit values, X & Y. Each can be anywhere within a
> range of say
> I don't know of any easy trick for trying to do addition in log
> space.  You
> could use a table to convert from the log values to linear value, do the
> addition, then use a table again to convert back to this log space.  That
> would be relatively fast but use a lot of code space.
>
> Why do the values need to be represented as they are?  If you can store
> everything internally as linear energy values, it would simplify doing
> calculations like this.  Do these values come in this way, need to go out
> this way?
>

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