Re: [boost] [units]

From: Deane Yang (deane_yang_at_[hidden])
Date: 2007-03-05 18:49:03

Noah Roberts wrote:

> There's just plain going to be times when you have to break out of the 
> dim/unit analysis model.  For instance, in fluid flow analysis, what I 
> do, you often have empirical functions...guesswork...it is not at all 
> uncommon to take a quantity to some variable power that might itself be 
> a quantity.  There's no way to enforce dimensions on this.  

Is this really right? Are you sure there isn't a constant lurking around 
that resolves all the dimensions properly? Surely, these formulas have 
to be adjusted appropriately if you use different units.

Can you provide a concrete example?