Problem 2199. Pairwise Euclidean Distance

Given two matrices A,B of dimensions NxK and NxL respectively, calculate the pairwise euclidean distance of all vectors (columns). The result should be a matrix of dimensions KxL which contains all possible pairs of distances.

Example:

 pairEuc([1 2; 3 4]', [5 6; 7 8; 9 10]')
 ans =
    5.6569    8.4853   11.3137
    2.8284    5.6569    8.4853