1. Creating and Accessing NumPy Arrays. In Python, NumPy is a library that provides support for arrays and matrices. You can create a NumPy array by importing the NumPy library and using the numpy.array()
function.
For example, you can create a NumPy array of numbers like this: import numpy as np; numbers = np.array([1, 2, 3, 4, 5])
. To access items in a NumPy array, you can use indexing, starting with 0 for the first item.
# Import the NumPy library
import numpy as np
# Create a NumPy array of numbers
numbers = np.array(___)
# Access the second item in the array
second_number = ___
# Print the second number
print(second_number)
# Import the NumPy library
import numpy as np
# Create a NumPy array of numbers
numbers = np.array([1, 2, 3, 4, 5])
# Access the second item in the array
second_number = numbers[1]
# Print the second number
print(second_number)
test_object("numbers")
success_msg("You have created a NumPy array of numbers and accessed the second item.")
To create a NumPy array, import NumPy and use numpy.array()
. To access items, use indexing starting from 0.