>From the man page:
Nonlinear units are represented using functional notation. They
make possible nonlinear unit conversions such temperature. This
is different from the linear units that convert temperature
differences. Note the difference below. The absolute
temperature conversions are handled by units starting with
`temp', and you must use functional notation. The temperature
differences are done using units starting with `deg' and they do
not require functional notation.
You have: tempF(45)
You want: tempC
7.2222222
You have: 45 degF
You want: degC
* 25
/ 0.04
Think of `tempF(x)' not as a function but as a notation which
indicates that `x' should have units of `tempF' attached to it.
See Nonlinear units. The first conversion shows that if it's 45
degrees Fahrehneit outside it's 7.2 degrees Celsius. The second
conversions indicates that a change of 45 degrees Fahrenheit
corresponds to a change of 25 degrees Celsius.
However:
You have: tempF(-459.67)
You want: tempC
-273.15
You have: tempF(-459.67)
You want: tempK
* -5.6843419e-14
/ -1.7592186e+13
You have: tempC(-273.15)
You want: tempK
* 0
/ inf
The temperature function appears not to work for Kelvin: a bug. I'll
send it upstream.
--
John Hasler
jhas...@newsguy.com
Elmwood, WI USA
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