Question

Create the following NumPy arrays:

A 2-D array called myarray2 using arange() having 3 rows and 5 columns with start value = 4, step size 4 and dtype as float.

Answer 1

A 2-D NumPy array called myarray2 having 3 rows and 5 columns can be created using the arange() function with start value = 4, step size = 4, and dtype = float.

import numpy as np
myarray2 = np.arange(4, 64, 4, dtype=float).reshape(3, 5)
print(myarray2)

Output:

[4.	8.	12.	16.	20.]
[24.	28.	32.	36.	40.]
[44.	48.	52.	56.	60.]]

Thus, it myarray2 is a 2-D array with 3 rows and 5 columns, containing floating-point values.