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Python - math.e property example
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The Math.E property returns e mathematical constant (2.718281828459045...).
e is called Euler's number or Napier's constant. However, it was discovered by Jacob Bernoulli. It is a mathematical constant used as the base of the natural logarithm.
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import math2
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print(math.e) # 2.7182818284590454
5
print(math.exp(1)) # 2.7182818284590456
print(math.exp(2)) # 7.389056098930657
print(math.exp(3)) # 20.085536923187668| Syntax |
xxxxxxxxxx1 math.e |
| Result | e number (2.718281828459045...). |
| Description |
|
To calculate e the following function with infinity series can be used to get a better precision infinite number of iterations with big precision numbers.
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import math2
3
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def calculateE(iterations):5
return sum(1 / float(math.factorial(i)) for i in range(iterations))6
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print(calculateE(1)) # 1.09
print(calculateE(2)) # 2.010
print(calculateE(5)) # 2.70833333333333311
print(calculateE(10)) # 2.718281525573192212
print(calculateE(20)) # 2.7182818284590455