### Formula

y

the exponential of x to base e

x

the exponent of y to base e

e

an irrational and transcendental constant approximately equal to2.718281828

y

the exponential of x to base e

x

the exponent of y to base e

e

an irrational and transcendental constant approximately equal to2.718281828

x

e

y

Precision

- C
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- C++
- Java
- JavaScript
- LaTeX
- PHP