Re: [boost] [units]

From: Steven Watanabe (steven_at_[hidden])
Date: 2007-03-05 15:54:52

AMDG

Dave Steffen <dgsteffen <at> numerica.us> writes:

> 
>   a) It might be handy, though, to have (for example) a log function
>   that enforces unitless quantities.  For example, 
> 
>      log ( velocity * time / meters )
> 
>   is fine, but if you forget to multiply by the time, you get a
>   helpful error message.
> 
>   b) It might also be handy, if possible, to have some functions that
>   take units and know what to do; for example, sqrt (m*m) properly
>   returns meters, and so forth.
> 

Absolutely.

We already have sin/cos &c.

We don't have sqrt but root<2>(m * m) will give
give the correct answer (albeit inefficiently). 
I'll look through cmath and add all the applicable
functions.

In Christ,
Steven Watanabe