

In [2]:

    
0.1 + 0.2









    Out[2]:





0.30000000000000004



In [3]:

    
0.1 + 0.2 - 0.3









    Out[3]:





5.551115123125783e-17



In [5]:

    
round (3.7654389, 3)









    Out[5]:





3.765



In [6]:

    
round (3.7656789, 3)









    Out[6]:





3.766

Note the round up.



In [7]:

    
round (3.7456789, 3)









    Out[7]:





3.746

Let's try this with 2 decimal places.



In [8]:

    
round (3.7456789, 2)









    Out[8]:





3.75



In [ ]: