numpy number of elements code example
Example 1: code for dimensions in numpy
import numpy as np
arr = np.array([1, 2, 3, 4])
arr_2D = np.array([[1, 2, 3, 4, 5], [6, 7, 8, 9, 10]])
print(arr.ndim)
print(arr_2D.ndim)
Example 2: numpy array length
np_array.size
Example 3: numpy how to length of vector
>>> x = np.zeros((3, 5, 2), dtype=np.complex128)
>>> x.size
30
>>> np.prod(x.shape)
30
Example 4: numpy number of elements
import numpy as np
x = np.array([1,2,3], dtype=np.float64)
print("Size of the array: ", x.size)
print("Length of one array element in bytes: ", x.itemsize)
print("Total bytes consumed by the elements of the array: ", x.nbytes)