import numpy as np
a = np.arange(4)
b = a / 0
print(b)

import numpy as np
a = np.array([[1, 2], [3, 4], [5, 6]])
b = a.flatten()
print(len(a), len(b))

import numpy as np
x = np.array([[1], [2]])
a = x.ravel()
a[0] = 0
print(x.sum())

import numpy as np
x = np.array([[1, 2], [3, 4]])
a = x.flatten()
b = x.ravel()
a[0] = 0
b[1] = 0
print(x.sum())

import numpy as np
a = np.linspace(1, 4, 4)
# ваш код
print(a)

import numpy as np
a = np.linspace(1, 4, 4)
b = a.reshape(2, 2)
b[0, 0] = 0
print(a[0] + b[0, 0] + b[1, 1])

import numpy as np
a = np.arange(4)
b = a.transpose()
x = a.shape == b.shape
print(x)

import numpy as np
a = np.array([1, 2])
b = np.array([3, 4])
c = np.hstack((a, b))
print(c.shape)

import numpy as np
a = np.array([1, 2])
b = np.array([3, 4])
c = np.vstack((a, b))
print(c.shape)

import numpy as np
a = np.array([1, 2])
b = np.array([3, 4])
c = np.dstack((a, b))
print(c.shape)