From: Geoffrey Irving (irving_at_[hidden])
Date: 2006-06-21 16:52:55
On Wed, Jun 21, 2006 at 03:49:22PM -0400, Daryle Walker wrote:
> On 6/19/06 12:03 PM, "Geoffrey Irving" <irving_at_[hidden]> wrote:
>
> > On Mon, Jun 19, 2006 at 09:43:45AM -0600, Dave Steffen wrote:
> [SNIP]
> >> It seems to me that building operations for vectors-with-units and
> >> matrices-with-units is a duplication of effort. If the PQS library
> >> is as easy to use as [ it should be | we think it is ] then
> >> incorporating units into UBLAS should be both easy and a good
> >> exercise.
> >
> > Small vectors and transforms require somewhat different interfaces than
> > large vectors. For example, uBLAS does not have cross products,
> > normalization, quaternions, exponential maps from vectors to quaternions,
> > etc.
> [TRUNCATE]
>
> But we have a quaternion library too....
When I said quaternions, I meant the action of quaternions on vectors.
Certainly any small vector library would want to use the existing
quaternions.
Geoffrey