Boost logo

Boost :

From: Robert Ramey (ramey_at_[hidden])
Date: 2003-10-15 14:12:05

Hugo Duncan wrote:

>One of the design criteria I would like to see is a clear distinction
>between dimensional analysis and units.

This is absolutly essential !!!!

Dimensions are one thing

units are a way of rendering them

Internally for arithmetic purposes, some canonical set of units
has to be selected. But any time a result is rendered at
the user level it as to include a units property which might
or might not be the same as the canonical one.

As an illustration of this point I uploaded my own
attempt of at a dimension/units library to the file section.
At the time I had no knowledge of templates so its
not suitable as a submission - However it does
illustrate the fundamental requirement that the
concept of dimensions are units are separate
and only grief will result from intermixing them.

Robert Ramey

Boost list run by bdawes at, gregod at, cpdaniel at, john at