🚀 go-pugleaf

David Damerell <damerell@chiark.greenend.org.uk> doodled in uk.comp.os.linux:

> >>Bollocks, the phrase "Device Speed is always a function of temperature" is
> >>wrong. "temperature is a function of device speed" is correct. 
> >An inverse function is also a function, as long as ranges, domains and non-
> >smooth bits are sorted out.
> 
> Eh, it depends. To a mathematician, perhaps; but I think in this context
> 'X is a function of Y' implies a relationship where Y causes X in some
> way.

Yup, I'd admit to being relatively pedantic, but *how* does one determine
whether it's speed that affects temperature *or* the other way round, in a
given case? (Other than, say, it being you wiggling the thermostat, sort of
thing!)

~Tim
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