Re: [boost] [units]

From: Matthias Schabel (boost_at_[hidden])
Date: 2007-04-04 11:08:21

>> See noise-density for an example of a unit in use that has a
>> fractional exponent : http://swiss.csail.mit.edu/~jaffer/MIXF
>
> Thank you for the pointer, I will have to think about that...

Another unit that is expressed in fractional powers is the esu  
(electrostatic unit); it is in fact defined as

esu := cm^(3/2) g^(1/2) s^(-1)

See here for a nice explanation : http://www.tf.uni-kiel.de/matwis/ 
amat/mw1_ge/kap_2/basics/b2_1_14.html

Now, as has been noted before, it's almost always possible to rewrite  
your equations to eliminate fractional powers, but from the end-user  
standpoint, reformulating an equation is more difficult and  
potentially error-prone than simply implementing an existing one...

Matthias