[FIXED PATCH 3/2] gas model: add polynomials for Z factors of oxygen/nitrogen/helium

Linus Torvalds torvalds at linux-foundation.org
Wed Mar 2 18:14:35 PST 2016

On Wed, Mar 2, 2016 at 5:55 PM, Linus Torvalds
<torvalds at linux-foundation.org> wrote:
> Having a curve that goes all the way to 500 bar (like the air one we
> have - that polynomial looks good all the way) would be nicer, of
> course.

Don't get me wrong. I don't think 500 bar is relevant. It's more the
fact hat I worry that with our tables going up only to 275 bar (for
the non-air gases), any pressure above that is kind of questionable.

>From just eyeballing the plots on Wolfram Alpha, I think all the
polynomials looked fine to 300 bar. They didn't look *horrible* up to
400 bar either. The Oxygen one was the worst by far past 400 bar, the
others didn't look too nasty.


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