create the matrix in python

main.py
import numpy as np

# create a 2x2 matrix
matrix1 = np.array([[1, 2], [3, 4]])

# create a 3x3 matrix with all zeros
matrix2 = np.zeros((3, 3))

# create a 4x4 matrix with all ones
matrix3 = np.ones((4, 4))

# create a 5x5 identity matrix
matrix4 = np.eye(5)

# create a 6x6 matrix with random values between 0 and 1
matrix5 = np.random.rand(6, 6)
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main.py
# access the element at row 0, column 0 of matrix1
element = matrix1[0, 0]
print(element)  # output: 1

# access the second row of matrix1
row = matrix1[1, :]
print(row)  # output: [3 4]

# access the first column of matrix1
column = matrix1[:, 0]
print(column)  # output: [1 3]
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