On Sun, Dec 29, 2013 at 5:03 PM, Stephen Paul King <
[email protected]> wrote:

> Dear Brent and Jason,
>
>   I think that this is an important idea: the relationship between
> compression algorithms and numbers. It does not look like a simple
> one-to-one and onto map!
>
>
Stephen,

For any "loss-less" (full-fidelity) compression algorithm, the mapping is
one-to-one.  There are other compression algorithms, like jpeg or mp3 which
are lossy (they discard some information in the process), and hence they
are many-to-one.

Jason

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