criando uma matriz numpy usando vazio

import numpy as np
   
b = np.empty(2, dtype = int)
print("Matrix b : \n", b)
   
a = np.empty([2, 2], dtype = int)
print("\nMatrix a : \n", a)
   
c = np.empty([3, 3])
print("\nMatrix c : \n", c)
Frightened Falcon