Function l2_norm

pattern/vector/__init__.py:685–690

Returns the L2-norm of the given vector.

(v)

rel = relative

def l2_norm(v):
    """ Returns the L2-norm of the given vector.
    """
    if isinstance(v, Vector):
        return v.l2_norm
    return sum(w * w for w in v.itervalues()) ** 0.5
    
norm = l2 = L2 = L2norm = l2norm = L2_norm = l2_norm