[boost] Re: physical-quantities

From: Dan W. (danw_at_[hidden])
Date: 2004-01-09 02:57:05

Andy Little wrote:
> my lib makes a point of not changing si OR non-si units unnecessarily during
> addition.

Good!

I also have another argument why the dimensional power type should be a 
template plug-in:

        e^(-j*pi) = 1.0

There may be situations where irrational and imaginary powers are 
needed, even when the final result is intended to be every-day 
quantities. Complex powers are not unfathomable.

And another argument for why the numeric representation should be a 
template plug-in:  In analog filter equations and digital signal 
processing it is common to use complex numbers in voltage or current units.
  Impedance == "complex resistance".

Cheers!