np.size code example

Example 1: numpy get array size

myArray.shape # Returns the number of rows, columns etc. (depends on dimensions how many numbers you get)

print(a_1d.shape)
# (3,)

print(type(a_1d.shape))
# <class 'tuple'>

print(a_2d.shape)
# (3, 4)

print(a_3d.shape)
# (2, 3, 4)

Example 2: dimensions of np array python

>>> x = np.zeros((3, 5, 2), dtype=np.complex128)
>>> x.size
30
>>> np.prod(x.shape)
30

Example 3: numpy array length

np_array.size

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)