std::pow

 

C++

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Floating-point medio ambiente

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En tiempo de compilación aritmética racional (C++11)

Genéricos operaciones numéricas Original: Generic numeric operations The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

iota (C++11)

accumulate

inner_product

adjacent_difference

partial_sum

 

Funciones matemáticas comunes

Funciones Original: Functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
Operaciones básicas Original: Basic operations The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
abs(int) labs llabs imaxabs (C++11) abs(float) fabs div ldiv lldiv imaxdiv (C++11) fmod	remainder (C++11) remquo (C++11) fma (C++11) fmax (C++11) fmin (C++11) fdim (C++11) nan nanf nanl (C++11) (C++11) (C++11)
Funciones exponenciales Original: Exponential functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
exp exp2 (C++11) expm1 (C++11)	log log10 log1p (C++11) log2 (C++11)
Funciones de energía Original: Power functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
sqrt cbrt (C++11)	hypot (C++11) pow
Funciones trigonométricas e hiperbólicas Original: Trigonometric and hyperbolic functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
sin cos tan asin acos atan atan2	sinh cosh tanh asinh (C++11) acosh (C++11) atanh (C++11)

Error gamma y funciones Original: Error and gamma functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
erf (C++11) erfc (C++11)	lgamma (C++11) tgamma (C++11)
Más cerca de las operaciones con enteros en coma flotante Original: Nearest integer floating point operations The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
ceil floor round lround llround (C++11) (C++11) (C++11)	trunc (C++11) nearbyint (C++11) rint lrint llrint (C++11) (C++11) (C++11)
Funciones de punto flotante de manipulación Original: Floating point manipulation functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
ldexp scalbn scalbln (C++11) (C++11) ilogb (C++11) logb (C++11)	frexp modf nextafter nexttoward (C++11) (C++11) copysign (C++11)
Clasificación / Comparación Original: Classification/Comparison The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
fpclassify (C++11) isfinite (C++11) isinf (C++11) isnan (C++11) isnormal (C++11) signbit (C++11)	isgreater (C++11) isgreaterequal (C++11) isless (C++11) islessequal (C++11) islessgreater (C++11) isunordered (C++11)
Constantes Macro Original: Macro constants The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
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       pow( float base, float exp );	(1)
double      pow( double base, double exp );	(2)
long double pow( long double base, long double exp );	(3)
Promoted    pow( Arithmetic base, Arithmetic exp );	(4)	(desde C++11)
float       pow( float base, int iexp );	(5)	(hasta C++11)
double      pow( double base, int iexp );	(6)	(hasta C++11)
long double pow( long double base, int iexp );	(7)	(hasta C++11)

Calcula el valor de base elevado a la potencia exp o iexp .

Original:

Computes the value of base raised to the power exp or iexp.

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4)

Un conjunto de sobrecargas o una plantilla de función para todas las combinaciones de argumentos de tipo aritmético no cubiertos por 1-3). Si algún argumento es de tipo integral, que se convierte en double. Si algún argumento es long double, entonces el Promoted tipo de retorno es también long double, de lo contrario el tipo de retorno es siempre double .

Original:

A set of overloads or a function template for all combinations of arguments of arithmetic type not covered by 1-3). If any argument has integral type, it is cast to double. If any argument is long double, then the return type Promoted is also long double, otherwise the return type is always double.

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Parámetros

base	-	base como valor de punto flotante Original: base as 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.
exp	-	exponente como valor de punto flotante Original: exponent as 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.
iexp	-	exponente como valor entero Original: exponent as integer 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

base planteada por el poder (o exp iexp) .

Original:

base raised by power (exp or iexp).

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Error de dominio si base es 0 y exp es menor que o igual a ​0​. NAN se devuelve en ese caso .

Original:

Domain error occurs if base is 0 and exp is less than or equal to ​0​. NAN is returned in that case.

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Error de dominio si base es negativo y exp no es un valor entero. NAN se devuelve en ese caso .

Original:

Domain error occurs if base is negative and exp is not an integer value. NAN is returned in that case.

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Rango de error se produce si un overflow ocurre. HUGEVAL se devuelve en ese caso .

Original:

Range error occurs if an overflow takes place. HUGEVAL is returned in that case.

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Notas

pow(float, int) vuelve float hasta C + +11 (sobrecarga por 5), pero vuelve double desde C + +11 (sobrecarga por 4)

Original:

pow(float, int) returns float until C++11 (per overload 5) but returns double since C++11 (per overload 4)

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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)
log	calcula natural (base e) logaritmo (base e) (ln(x)) Original: computes natural (base e) logarithm (to base e) (ln(x)) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función)
sqrt	calcula la raíz cuadrada (√x) (función)
cbrt (C++11)	calcula la raíz cúbica (3√x) (función)
pow(std::complex)	potencia compleja, uno o ambos argumentos puede ser un número complejo Original: complex power, one or both arguments may be a complex number The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función de plantilla)
pow(std::valarray)	aplica la función std::pow a dos o valarrays valarray una y un valor Original: applies the function std::pow to two valarrays or a valarray and a value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función de plantilla)