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      std::scalbn, std::scalbln

      Da cppreference.com
      < cpp‎ | numeric‎ | math

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      C++
       
      Biblioteca numéricos
      Funções matemáticas comuns
      De ponto flutuante ambiente
      Números complexos
      Matrizes numéricas
      Pseudo-aleatório de geração de números
      Tempo de compilação aritmética racional(C++11)
      Genéricos operações numéricas
      Original:
      Generic numeric operations
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      (C++11)
       
      Funções matemáticas comuns
      Funções
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      Functions
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      Operações básicas
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      Basic operations
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      (C++11)
      (C++11)
      (C++11)
      (C++11)
      (C++11)
      (C++11)
      (C++11)(C++11)(C++11)
      Funções exponenciais
      Original:
      Exponential functions
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      (C++11)
      (C++11)
      (C++11)
      (C++11)
      Funções de poder
      Original:
      Power functions
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      (C++11)
      (C++11)
      Funções trigonométricas e hiperbólicas
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      Trigonometric and hyperbolic functions
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      (C++11)
      (C++11)
      (C++11)
      Erro e funções gamma
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      Error and gamma functions
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      (C++11)
      (C++11)
      (C++11)
      (C++11)
      Número inteiro mais próximo de operações de ponto flutuante
      Original:
      Nearest integer floating point operations
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      (C++11)(C++11)(C++11)
      (C++11)
      (C++11)
      (C++11)(C++11)(C++11)
      Flutuando funções de manipulação de pontos
      Original:
      Floating point manipulation functions
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      scalbnscalbln
      (C++11)(C++11)
      (C++11)
      (C++11)
      Classificação / Comparação
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      Classification/Comparison
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      (C++11)
      Constantes de macros
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      Macro constants
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      (C++11)(C++11)(C++11)(C++11)(C++11)
       
      Definido no cabeçalho <cmath>
      float       scalbn(float x, int exp );
      		(desde C++11)
      double      scalbn(double x, int exp );
      		(desde C++11)
      longdouble scalbn(longdouble x, int exp );
      		(desde C++11)
      double      scalbn( Integral x, int exp );
      		(desde C++11)
      float       scalbln(float x, long exp );
      		(desde C++11)
      double      scalbln(double x, long exp );
      		(desde C++11)
      longdouble scalbln(longdouble x, long exp );
      		(desde C++11)
      double      scalbln( Integral x, long exp );
      		(desde C++11)
      Multiplica um valor de ponto flutuante por xFLT_RADIX aumentado para exp poder. No sistema binário é 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]Parâmetros

      arg -
      flutuando valor de ponto
      Original:
      floating point value
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      exp -
      valor inteiro
      Original:
      integer value
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      [editar]Valor de retorno

      x×FLT_RADIXexp retornos
      Original:
      returns x×FLT_RADIXexp
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      Se o resultado é muito grande para o tipo de base, o erro ocorre gama e HUGE_VAL é retornado.
      Original:
      If the result is too large for the underlying type, range error occurs and HUGE_VAL is returned.
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      [editar]Veja também

      decompõe um número em significand e um poder de 2
      Original:
      decomposes a number into significand and a power of 2
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      (função)[edit]
      multiplica um número por 2 elevado a uma potência
      Original:
      multiplies a number by 2 raised to a power
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      (função)[edit]
      Obtida de "https://pt.cppreference.com/mwiki/index.php?title=cpp/numeric/math/scalbn&oldid=21282"
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