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std::pow

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< cpp‎ | numeric‎ | math

 
 
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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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Contenido

[editar] Parámetros

base -
base como valor de punto flotante
Original:
base as floating point value
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exp -
exponente como valor de punto flotante
Original:
exponent as floating point value
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iexp -
exponente como valor entero
Original:
exponent as integer value
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[editar] 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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[editar] 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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[editar] Ver también

regresa e elevado a la potencia dada (ex)
Original:
returns e raised to the given power (ex)
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(función) [edit]
calcula natural (base e) logaritmo (base e) (ln(x))
Original:
computes natural (base e) logarithm (to base e) (ln(x))
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(función) [edit]
calcula la raíz cuadrada (x)
Original:
computes square root (x)
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(función) [edit]
(C++11)
calcula cúbico raíz (3x)
Original:
computes cubic root (3x)
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(función) [edit]
potencia compleja, uno o ambos argumentos puede ser un número complejo
Original:
complex power, one or both arguments may be a complex number
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(función de plantilla) [edit]
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
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(función de plantilla) [edit]