Calculate e = 2.718281828459
e is a number that comes up in financial application problems and
in nature. It is sometimes called the natural number. It is defined in terms
of a limit: 
and
it is the base of the natural exponential growth and logarithmic functions. You
will get a more accurate value for e everytime you increase n
in the expression: (1 + 1/n)n.
n = 1, e ≈ 2, error = 0.71828182845905 relative error = 26.424111765712%
session_id() = nl4tu2q1rv4sdhojp75mjiqik6a145qt
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