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# std::exp

From cppreference.com
< cpp‎ | numeric‎ | math

Defined in header `<cmath>` |  |
float exp( float arg ); |  |
double exp( double arg ); |  |
long double exp( long double arg ); |  |
double exp( Integral arg ); |  | (since C++11)

Computes the e (Euler's number, `2.7182818`) raised to the given power `arg`

### [edit] Parameters

arg | - | value of floating-point or Integral type

### [edit] Return value

e raised to the power `arg`

If the result is too large for the underlying type, range error occurs and HUGE_VAL is returned.

### [edit] See also

log | computes natural (base e) logarithm (to base e) (ln(x)) (function) [edit]
pow | raises a number to the given power (xy) (function) [edit]
exp(std::complex) | complex base e exponential (function template) [edit]
pow(std::complex) | complex power, one or both arguments may be a complex number (function template) [edit]
pow(std::valarray) | applies the function std::pow to two valarrays or a valarray and a value (function template) [edit]
C documentation for exp

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