Check the linear depencency of two vectors using Numpy

linear_dependency.py

import numpy as np
from scipy.linalg import lu
 
def linearly_dependent(x, y):
  if len(x) == 2 and len(y) == 2:
    matrix = np.array([x, y]).T
    return np.linalg.det(matrix) == 0.0
  else:
    matrix = np.array([x, y])
    _, u = lu(matrix, permute_l=True)
    zero_rows = np.where(~u.any(axis=1))[0]
    if zero_rows.size > 0: # Check array is empty
      return True
    else:
      return False