[boost] Re: Probing interest in fixed dimension matrix class

From: Deane Yang (deane_yang_at_[hidden])
Date: 2005-06-02 10:57:07

Andy Little wrote:
> 
> eg to find the point 1/3 rd way from the start of  line(A , B) one could
> calculate 2/3 *A +1/3 * B.
> 

I think it is more natural to compute this as

A + (1/3)*(B - A),

where A and B are points and B - A is a vector. So you're really still 
just adding a vector to a point to get a new point. There is never a 
need to add or rescale points.