Question

Create the following NumPy arrays:

Use nested Python lists to create a 2-D array called myarray1 having 3 rows and 3 columns and store the following data:

2.7,	-2,	-19
0,	3.4,	99.9
10.6,	0,	13

Answer 1

A 2-D NumPy array called myarray1 can be created using nested Python lists as follows:

import numpy as np
myarray1 = np.array
([
    [2.7, -2, -19],
    [0, 3.4, 99.9],
    [10.6, 0, 13]
])
print(myarray1)

Output:

[[2.7.	-2.	-19.]
[0.	3.4.	99.9]
[10.6.	0.	13.]]