

In [1]:

    
1 + 1









    Out[1]:





2



In [2]:

    
90 * 10









    Out[2]:





900



In [3]:

    
2 ** 2









    Out[3]:





4



In [4]:

    
2 ** (2 ** 3)









    Out[4]:





256



In [7]:

    
1 + (2 * 3)









    Out[7]:





7



In [9]:

    
(9 * 93) + (2339 - 138)









    Out[9]:





3038



In [10]:

    
8 % 4









    Out[10]:





0



In [11]:

    
7 % 3









    Out[11]:





1

Modulo weirdness

This 49 happens because of how the modulo operation is defined in mathematics. You can read more about it here: https://en.wikipedia.org/wiki/Modulo_operation AND http://math.stackexchange.com/questions/519845/modulo-of-a-negative-number

For Python specifically you can read about it here: https://docs.python.org/3/reference/expressions.html#binary-arithmetic-operations



In [19]:

    
-1 % 50









    Out[19]:





49



In [24]:

    
-3 // 4









    Out[24]:





-1

Modulo Workings

This comes out to 12 becuase you do remainder division. 12 divided by 15 is 0 with a remainder of 12. Or thinking about it in another way. 15 can fit into 12 0 times. There are still 12 pieces left over and that is the remainder.



In [23]:

    
12 % 15









    Out[23]:





12



In [ ]:

    
8