[SciPy-User] Extracting common triplet from coordinate lists

[David Warde-Farley]

On 28-Sep-09, at 7:23 AM, alexander baker wrote:

> You should be able to use orthogonality between same vectors in  
> different
> matrices to detect zero values in the arccos(A * transpose(B))  
> matrix and
> distinct permutations there of.  (Make sure your norm each vector  
> first in A
> and B.)

Except that you don't necessarily want to treat all the points as unit  
vectors. I think in his application he's hoping to isolate [1,2,3] and  
[2,4,6]  as two separate points.

David