The natural constant e is \(lim(1+1/x)^x\)，x→+∞ or \(lim(1+z)^{1/z}\)，z→0，its value is about 2.71828，it is an infinite non-cyclic number.
e, as a mathematical constant, is the base of the natural logarithm function. Sometimes it is called the Euler number, named after the Swiss mathematician Euler; there is also a relatively rare name Napier constant to commemorate the introduction of the logarithm by Scottish mathematician John Napier. It is like the pi and the imaginary unit i, and e is one of the most important constants in mathematics.
Input x(<=709): 5
Click "Calculate" to output the result
ex: 148.41316
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