UOMs with differing zero points

[flipmokid]

This looks like a great library to help me with a project I need to complete.

I was wondering how you would represent a conversion between two units with differing zero points (e.g. Celsius to Fahrenheit) using this library?

Also, if a UOM conversion involves some lookup value to be used (e.g. going from volume to mass requires knowing the density of the liquid) is there a suggested approach for doing this.

[2food]

Hi @flipmokid

Your first question has now been answered by the FAQ section on the readme.

The answer to your second question is to that you need a unit for density. (which I've just added a couple of in 44cc78b)
Then you define a constant with the density of your liquid. According to google, the density of water is about 997 kg/m³ (at 25°C). So that could be defined like this:

(def water-density-at-25C (b/kilograms-per-cubic-meter 997))

; then you could do your calculations with it
(b/* water-density-at-25C (b/liters 300))
; => #broch/quantity[299.1 "kg"]