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      log

      Da cppreference.com
      < c‎ | numeric‎ | math

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      C
       
      Numéricos
       
      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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      Funções exponenciais
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      Exponential functions
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      log
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      Funções de poder
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      Power functions
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      Funções trigonométricas e hiperbólicas
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      Trigonometric and hyperbolic functions
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      Erro e funções gamma
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      Error and gamma functions
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      Número inteiro mais próximo de operações de ponto flutuante
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      Nearest integer floating point operations
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      Flutuando funções de manipulação de pontos
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      Floating point manipulation functions
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      Classificação
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      Classification
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      Constantes de macros
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      Macro constants
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      Definido no cabeçalho <math.h>
      float       logf(float arg );
      double      log(double arg );
      longdouble logl(longdouble arg );

      Computes the natural (base e) logarithm of arg.

      Índice

      [editar]Parâmetros

      arg -
      flutuando valor de ponto
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      floating point value
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      [editar]Valor de retorno

      Natural logarithm of arg.

      Erro de domínio ocorre se arg é negativo. NAN é devolvido em caso.
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      Domain error occurs if arg is negative. NAN is returned in that case.
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      Faixa de erro ocorre se arg é ​0​. -HUGE_VAL é devolvido em caso.
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      Range error occurs if arg is ​0​. -HUGE_VAL is returned in that case.
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      [editar]Exemplo

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      Motivo: sem exemplo

      [editar]Veja também

      retorna e elevado à potência dada (ex)
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      returns e raised to the given power (ex)
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      (função)[edit]
      calcula comum (base 10) logaritmo (log10(x))
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      computes common (base 10) logarithm (log10(x))
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      (função)[edit]
      levanta uma série para o poder dado (xy)
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      raises a number to the given power (xy)
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      (função)[edit]
      C++ documentation for log
      Obtida de "https://pt.cppreference.com/mwiki/index.php?title=c/numeric/math/log&oldid=19712"
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