diff_dimensions.py

import numpy as np

# Dimensions and shape of the arrays are different
a1=np.ones([3,2])
print (a1)
'''
#Output:
[[1. 1.]
 [1. 1.]
 [1. 1.]]
    '''
a2=np.arange(1,13).reshape(2,3,2)
print (a2)
'''
#Output:
[[[ 1  2]
  [ 3  4]
  [ 5  6]]

 [[ 7  8]
  [ 9 10]
  [11 12]]]
'''
print (a1+a2)
'''
#Output:
[[[ 2.  3.]
  [ 4.  5.]
  [ 6.  7.]]

 [[ 8.  9.]
  [10. 11.]
  [12. 13.]]]
'''