Espaços nominais
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      tan

      De cppreference.com
      < c | numeric | math

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      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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      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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      <tbody> </tbody>
      Definido no cabeçalho <math.h>
      float tanf( float arg );
      double tan( double arg );
      long double tanl( long double arg );
      Calcula tangente de arg
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      Computes tangent of arg
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      Parâmetros

      arg -
      valor de ponto flutuante que representa o ângulo em radianos
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      floating point value representing angle in radians
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      Valor de retorno

      Tangente de arg.
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      Tangent of arg.
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      Erro de domínio ocorre se arg é infinito. NAN é devolvido em caso.
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      Domain error occurs if arg is infinite. NAN is returned in that case.
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      Veja também
      calcula seno (sin(x))
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      computes sine (sin(x))
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      (função) [edit]
      calcula cosseno (cos(x))
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      computes cosine (cos(x))
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      (função) [edit]
      calcula do arco tangente (arctan(x))
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      computes arc tangent (arctan(x))
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      (função) [edit]
      C++ documentation for tan