Scipy and Numpy Quiz

What is a correct syntax to return the mathematical number PI from the constants module, if the module is imported like this:

from scipy import constants

• constants.pi

• constants.pi_int

• PI

What is a correct syntax to a list of all units under the constants module, if the module is imported like this:

from scipy import constants

• constants

• dir(constants)

• constants.list

When dealing with curves, what are the low points called?

• minima

• low

• U

• bottom

What is the correct syntax to return the number of 'not zero' values in an array?

• nonzeros()

• no_zeros()

• nozeros()

• count_nonzeros()

When working with constanst, what would be the result of the following:

constants.kilo

• 10.0

• 1000.0

• 1.0

• 100.0

What is the correct syntax to create a NumPy array?

• np.array([1, 2, 3, 4, 5])

• np.createArray([1, 2, 3, 4, 5])

• np.object([1, 2, 3, 4, 5])

What is a correct syntax to check the number of dimensions in an array?

• np.ndim

• np.dim

• np.ndim()

• np.dim()

What is a correct syntax to print the number 8 from the array below:

arr = np.array([[1,2,3,4,5], [6,7,8,9,10]])

• print(arr[1, 2])

• print(arr[3, 0])

• print(arr[7, 2])

Which syntax would print the last 4 numbers from the array below:

arr = np.array([1,2,3,4,5,6,7])

• print(arr[3:])

• print(arr[4])

• print(arr[4:])

• print(arr[:4])

What is a correct syntax to mathematically add the numbers of arr1 to the numbers of arr2?

• np.add(arr1, arr2)

• sum(arr1, arr2)

• np.append(arr1, arr2)