Knowledge Base Math

Natural log and e

math.log(x) - returns the natural logarithm of x (to base e)

math.exp(x) -returns e raised to the power x, where e = 2.718281… is the base of natural logarithms.

math.e - Euler’s number.

>>> math.e**3
20.085536923187664
>>> math.log(_)
3.0
# Illustrating log base e (e**a * e**b) = a + b
>>> int(math.log(math.exp(5) * math.exp(7)))  # = 5 + 7
12
>>> math.log(math.exp(5) * math.exp(7))
12.0