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From: Deane Yang (deane_yang_at_[hidden])
Date: 2004-01-11 17:05:01

Dan W. wrote:

>> Complex quanitities are for me clearly beyond the scope of
>> the current unit libraries. Higher dimensional analysis
>> is probably useful, but a lot trickier to implement.
>> 1-dimensional analysis serves 90% of the needs.
> This I take issue with: Complex numbers are used everywhere to describe
> time-changing phenomena, be it voltage, force, current or motion or
> acceleration. And there's nothing that a units library shouldn't be
> able to handle about it. If v = t * u, where all have complex
> representations, boils down to four v = t * u operations using double,
> say, an addition and a subtraction.
> In fact, the units library doesn't even care that a complex
> multiplication is taking place; all it needs to do is decorate the
> complex result to the right type of units, which is the same type as if
> the operation were simple.

Yes, I think I do want to concede this point. You generally can assign
units to a complex number, and the units library should work as
advertised. Thanks!

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