Espacios de nombres
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scalbn, scalbln

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< c‎ | numeric‎ | math

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C
 
Números
 
Funciones matemáticas comunes
Funciones
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Functions
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Operaciones básicas
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Basic operations
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Funciones exponenciales
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Exponential functions
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Funciones de energía
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Power functions
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Funciones trigonométricas e hiperbólicas
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Trigonometric and hyperbolic functions
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Error gamma y funciones
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Error and gamma functions
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Más cerca de las operaciones con enteros en coma flotante
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Nearest integer floating point operations
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Funciones de punto flotante de manipulación
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Floating point manipulation functions
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scalbnscalbln
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Clasificación
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Classification
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Constantes Macro
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Macro constants
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Definido en el archivo de encabezado <cmath>
float       scalbnf( float x, int exp );
 (desde C99)
double      scalbn( double x, int exp );
 (desde C99)
long double scalbnl( long double x, int exp );
 (desde C99)
float       scalblnf( float x, long exp );
 (desde C99)
double      scalbln( double x, long exp );
 (desde C99)
long double scalblnl( long double x, long exp );
 (desde C99)
Multiplica un valor de punto flotante por x FLT_RADIX elevado a exp poder. El sistema binario es equivalente a ldexp() .
Original:
Multiplies an floating point value x by FLT_RADIX raised to power exp. On binary system it is equivalent to ldexp().
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[editar] Parámetros

arg -
flotando valor en puntos
Original:
floating point value
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exp -
valor entero
Original:
integer value
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[editar] Valor de retorno

Devoluciones x×FLT_RADIXexp .
Original:
Returns x×FLT_RADIXexp.
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Si el resultado es demasiado grande para el tipo subyacente, se produce error de rango y devuelve HUGE_VAL .
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If the result is too large for the underlying type, range error occurs and HUGE_VAL is returned.
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[editar] Ver también
se descompone un número en mantisa y una potencia de 2
Original:
decomposes a number into significand and a power of 2
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(función) [editar]
multiplica un número por 2 elevado a una potencia
Original:
multiplies a number by 2 raised to a power
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(función) [editar]
Documentación de C++ para scalbn
Obtenido de «https://es.cppreference.com/mwiki/index.php?title=c/numeric/math/scalbn&oldid=29783»