Espaços nominais
Variantes
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std::log1p

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< 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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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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log1p
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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 / Comparação
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Classification/Comparison
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Constantes de macros
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Macro constants
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Definido no cabeçalho <cmath>
float       log1p( float arg );
 (desde C++11)
double      log1p( double arg );
 (desde C++11)
long double log1p( long double arg );
 (desde C++11)
double      log1p( Integral arg );
 (desde C++11)
Calcula o natural (base e) logaritmo de 1+arg. Esta funç��o é mais preciso do que a expressão std::log(1+arg) se arg está perto de zero.
Original:
Computes the natural (base e) logarithm of 1+arg. This function is more precise than the expression std::log(1+arg) if arg is close to zero.
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[editar] Parâmetros

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

ln(1+arg)

Erro de domínio ocorre se arg é negativo. NAN é devolvido em caso.
Original:
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.
Original:
Range error occurs if arg is ​0​. -HUGE_VAL is returned in that case.
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[editar] Veja também
calcula natural (base e) logaritmo (de base e) (ln(x))
Original:
computes natural (base e) logarithm (to base e) (ln(x))
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(função) [edit]
(C++11)
retorna e elevado à potência dada, menos um (ex-1)
Original:
returns e raised to the given power, minus one (ex-1)
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(função) [edit]
calcula comum (base 10) logaritmo (log10(x))
Original:
computes common (base 10) logarithm (log10(x))
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(função) [edit]
(C++11)
logaritmo base 2 do número dado
Original:
base 2 logarithm of the given number
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(função) [edit]
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