import numpy as np # otherops.py 

a = np.array([1,2])
b = np.array([3,4])

print('a:           ',a) 
print('b:           ',b) 
print('a*b:         ',a*b) 
print('np.sum(a*b): ',np.sum(a*b)) 
print('(a*b.sum()): ',(a*b).sum()) 

