Python Quiz 1.6

Which of the following is full form of NumPy?

• Number Python

• Numeric Python

• Numerical Python

• None of these

Which of the function is a function to create a numpy array?

• empty()

• array()

• ones()

• All the above

What is the output of the below code?

np.arange(2,8)

• array([2, 3, 4, 5, 6, 7])

• array([3, 4, 5, 6, 7])

• array([2, 3, 4, 5, 6, 7, 8])

• array([3, 4, 5, 6, 7, 8])

Find the output of the below code.

a = np.array([[[1,2,3],[4,5,6]]])

print(a.ndim)

• 1

• (1,3)

• 3

• (3,1)

Find the output of the below code.

a = np.array([[1,2,3],[4,5,6]])

print(a[1,2])

• 6

• 5

• 2

• TypeError

What is the output of the below code?

print(np.linspace(1,5,5))

• array([1. , 2.33333333, 3.66666667, 5. ])

• array([1., 2., 3., 4., 5.])

• array([1. , 1.8, 2.6, 3.4, 4.2, 5. ])

• None of the above

Which of the following is code gives an error?

• a = np.array([(1,2,3),(4,5,6)]) a[(0,1)]

• a = np.array([(1,2,3),(4,5,6)]) a.reshape(2,4)

• a = np.array([(1,2,3),(4,5,6)]) a[np.arange(1), :]

• All the above

What is the output of the below code?

print(np.zeros(5).dtype)

• int8

• int16

• uint8

• float64

Which of the following is not true about the identity matrix?

• It is a square matrix

• It contains 1s in all the diagonals

• We can create an identity matrix using the identity() function

• None of the above

What is the output of the below code?

np.array([[1,2,3],[4,5,6]]).ravel()

• array([1, 2, 3, 4, 5, 6])

• array([4, 5, 6, 1, 2, 3])

• array((1, 2, 3, 4, 5, 6))

• SyntaxError