Module distance 

SIMD-accelerated distance calculations.

Functions

cosine_distance

Cosine distance: 1 - cos(a, b).

dot_product

Dot product with SIMD acceleration.

l2_distance

L2 (Euclidean) distance with SIMD acceleration.

l2_distance_squared

L2 distance squared (no sqrt) for comparisons.

l2_squared_decomposed

L2 distance squared using decomposition: ||a-b||² = ||a||² + ||b||² - 2⟨a,b⟩

norm_squared

Compute squared norm of a vector (||v||²)