PYTHON

Numpy nditer

import numpy as np
a=np.array([[2,4,5],[3,6,7],[4,8,9]])
print("Original array is :")
print(a)
print("Modified array is:")
for x in np.nditer(a, flags = ['external_loop'],order='F'):
        print(x)

np.nditer

>>> def iter_add(x, y, out=None):
...    addop = np.add
...    it = np.nditer([x, y, out], [],
...                [['readonly'], ['readonly'], ['writeonly','allocate']])
...    with it:
...        while not it.finished:
...            addop(it[0], it[1], out=it[2])
...            it.iternext()
...        return it.operands[2]

Numpy nditer

import numpy as np
a=np.array([2,4,5])
print("Original array is :")
print(a)
print("Modified array is:")
for x in np.nditer(a):
       print(x)