CosineDistance

CosineDistance[u, v] gives the angular cosine distance between vectors u and v.

Examples

Compute the cosine distance between two vectors:

CosineDistance[{1, 0}, {0, 1}]
(* 1 *)

Parallel vectors have zero cosine distance:

CosineDistance[{1, 2, 3}, {2, 4, 6}]
(* 0 *)

Please visit the official Wolfram Language Reference for more details.