# lgamma

< c‎ | numeric‎ | math

C
 Linguagem Digite apoio Gerenciamento de memória dinâmica De tratamento de erros Utilidades do programa Utilitários de data e hora Biblioteca cordas Algoritmos Numéricos Entrada / saída de apoio Suporte de localização Apoio discussão (C11) Operações atômicas (C11)

Funções matemáticas comuns
Funções
Original:
Functions
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Operações básicas
Original:
Basic operations
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 abslabsllabsimaxabs (C99)
 fabs
 divldivlldivimaxdiv (C99)
 fmod
 remainder (C99)
 remquo (C99)
 fma (C99)
 fmax (C99)
 fmin (C99)
 fdim (C99)
 nannanfnanl (C99)(C99)(C99)
Funções exponenciais
Original:
Exponential functions
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 exp
 exp2 (C99)
 expm1 (C99)
 log
 log10
 log1p (C99)
 log2 (C99)
Funções de poder
Original:
Power functions
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 sqrt
 cbrt (C99)
 hypot (C99)
 pow
Funções trigonométricas e hiperbólicas
Original:
Trigonometric and hyperbolic functions
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 sin
 cos
 tan
 asin
 acos
 atan
 atan2
 sinh
 cosh
 tanh
 asinh (C99)
 acosh (C99)
 atanh (C99)
Erro e funções gamma
Original:
Error and gamma functions
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 erf (C99)
 erfc (C99)
 lgamma (C99)
 tgamma (C99)
Número inteiro mais próximo de operações de ponto flutuante
Original:
Nearest integer floating point operations
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 ceil
 floor
 roundlroundllround (C99)(C99)(C99)
 trunc (C99)
 nearbyint (C99)
 rintlrintllrint (C99)(C99)(C99)
Flutuando funções de manipulação de pontos
Original:
Floating point manipulation functions
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 ldexp
 scalbnscalbln (C99)(C99)
 ilogb (C99)
 logb (C99)
 frexp
 modf
 nextafternexttoward (C99)(C99)
 copysign (C99)
Classificação
Original:
Classification
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 fpclassify (C99)
 isfinite (C99)
 isinf (C99)
 isnan (C99)
 isnormal (C99)
 signbit (C99)
Constantes de macros
Original:
Macro constants
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 HUGE_VALFHUGE_VALHUGE_VALL (C99)(C99)
 FP_NORMALFP_SUBNORMALFP_ZEROFP_INFINITEFP_NAN (C99)(C99)(C99)(C99)(C99)

 Definido no cabeçalho float       lgammaf( float arg ); double      lgamma( double arg ); long double lgammal( long double arg );
Calcula o logaritmo natural do valor absoluto do gama de funções de `arg`.
Original:
Computes the natural logarithm of the absolute value of the gama de funções of `arg`.
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## Índice

### [editar]Parâmetros

 arg - flutuando valor de pontoOriginal: floating point valueThe text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

### [editar]Valor de retorno

O valor do logaritmo da função gama de `arg`, isto é log
e
|
0
targ-1
e-t dt|
.
Original:
The value of the logarithm of the gamma function of `arg`, that is log
e
|
0
targ-1
e-t dt|
.
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Se `arg` é um número natural, lgamma(arg) é o logaritmo do fatorial de `arg-1`.
Original:
If `arg` is a natural number, lgamma(arg) is the logarithm of the factorial of `arg-1`.
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### [editar]Exceções

Se `arg` é zero ou um inteiro negativo, pode ocorrer erro pólo e FE_INVALID FE_DIVBYZERO ou podem ser levantadas.
Original:
If `arg` is zero or a negative integer, pole error may occur and FE_INVALID or FE_DIVBYZERO may be raised.
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Se `arg` for demasiado grande, intervalo de erro pode ocorrer e pode ser elevado FE_OVERFLOW.
Original:
If `arg` is too large, range error may occur and FE_OVERFLOW may be raised.
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### [editar]Notas

POSIX specification requer adicionalmente que cada execução de lgamma armazena o sinal da função gama de `arg` no `signgam` variável externa.
Original:
POSIX specification additionally requires that each execution of lgamma stores the sign of the gamma function of `arg` in the external variable `signgam`.
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### [editar]Veja também

 tgamma(C99) gama de funções Original: gamma function The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (função)  C++ documentation for lgamma