G'day all.
On Sat, Jul 19, 2003 at 01:52:32AM -0400, Dylan Thurston wrote:
> It's maybe easiest to think in terms of group theory with an
> action on a set: you're just distinguishing between the multiplication
> of group elements and the actual action. This distinction is not
> usually reflecte
On Saturday, 2003-07-19, 07:52, CEST, Dylan Thurston wrote:
> [...]
> But if you have -Point, then you have a 0 Point, and there's no distinction
> between Points and Vectors at all!
Yes, I always thought (and still think) that the (main) difference between
points in affine geometry and radius v
On Sat, Jul 19, 2003 at 02:06:44PM +1000, Andrew J Bromage wrote:
> G'day all.
>
> On Fri, Jul 18, 2003 at 04:08:25AM -0400, Dylan Thurston wrote:
>
> > What's wrong with that solution?
>
> Working with these operators, I would spend a significant amount of
> time getting the '<' and '>' notatio
G'day all.
On Fri, Jul 18, 2003 at 04:08:25AM -0400, Dylan Thurston wrote:
> What's wrong with that solution?
Working with these operators, I would spend a significant amount of
time getting the '<' and '>' notations right rather than writing
code. I don't like that.
For example, using the sug
On Fri, Jul 18, 2003 at 11:39:48AM +1000, Andrew J Bromage wrote:
> > Someone mentioned multiplying by a scalar. I think this is a
> > good application, but what we need is to agree (somehow) on
> > the symbol used. I've used (*.) and (.*), with the dot being
> > on the side the scalar is on (on th
G'day all.
On Thu, Jul 17, 2003 at 04:46:13PM +0100, Jon Fairbairn wrote:
> Someone mentioned multiplying by a scalar. I think this is a
> good application, but what we need is to agree (somehow) on
> the symbol used. I've used (*.) and (.*), with the dot being
> on the side the scalar is on (on
On 2003-07-17 at 09:08+0200 Johannes Waldmann wrote:
> On Wed, 16 Jul 2003, K. Fritz Ruehr wrote:
>
> > I think the cutest way to get what you want here is to define a new
> ^^
> > operator as follows:
> >
> > (.<) = (.) . (.)
>
> Indeed this is cute - but let me add a gene
