std::expm1

 

C++

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HUGE_VALF HUGE_VAL HUGE_VALL (C++11) (C++11) INFINITY (C++11) NAN (C++11) math_errhandling MATH_ERRNO MATH_ERREXCEPT (C++11)	FP_NORMAL FP_SUBNORMAL FP_ZERO FP_INFINITE FP_NAN (C++11) (C++11) (C++11) (C++11) (C++11)

 

Defined in header <cmath>
float       expm1( float arg );		(desde C++11)
double      expm1( double arg );		(desde C++11)
long double expm1( long double arg );		(desde C++11)
double      expm1( Integral arg );		(desde C++11)

Calcula el e (el número de Euler, 2.7182818) elevado a la potencia dada arg, menos 1. Esta función es más precisa que la expresión std::exp(arg)-1 si arg es cercana a cero .

Original:

Computes the e (Euler's number, 2.7182818) raised to the given power arg, minus 1. This function is more accurate than the expression std::exp(arg)-1 if arg is close to zero.

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Parámetros

arg

-

flotando valor en puntos Original: floating point value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Valor de retorno

earg
-1

Si el resultado es demasiado grande para el tipo subyacente, se produce error de rango y devuelve HUGE_VAL .

Original:

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

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Ver también

exp	regresa e elevado a la potencia dada (ex) Original: returns e raised to the given power (ex) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función)
log1p (C++11)	logaritmo natural (a base e) de 1 más el número dado Original: natural logarithm (to base e) of 1 plus the given number The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función)
exp2 (C++11)	regresa 2 elevado a la potencia dada (2x) Original: returns 2 raised to the given power (2x) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función)