import numpy as np
a = np.zeros(10, dtype = int)
a

a = np.ones((3,5), dtype = float)
a

a = np.full((3,5), 3.14)
a

np.arange(0, 20, 2)

np.linspace(0, 1, 5)

a = np.random.random((3, 3))
a

a = np.random.normal(0, 1, (3, 3))
a

a = np.random.randint(0, 10, (3, 3))
a

a = np.eye(3)
a

np.empty(3)