Python 3.6.2 (v3.6.2:5fd33b5, Jul  8 2017, 04:14:34) [MSC v.1900 32 bit (Intel)] on win32
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>>> import math
>>> math.log()
Traceback (most recent call last):
  File "<pyshell#1>", line 1, in <module>
    math.log()
TypeError: log expected at least 1 arguments, got 0
>>> math.log(10)
2.302585092994046
>>> math.log10(10)
1.0
>>> math.exp(2)
7.38905609893065
>>> math.pow(4,3)
64.0
>>> math.sqrt(64)
8.0
>>> 
