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tgamma

Da cppreference.com.
< c‎ | numeric‎ | math

 
 
 
Comuni funzioni matematiche
Funzioni
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Functions
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Operazioni di base
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Basic operations
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remainder(C99)
remquo(C99)
fma(C99)
fmax(C99)
fmin(C99)
fdim(C99)
nan
nanf
nanl
(C99)
(C99)
(C99)
Funzioni esponenziali
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Exponential functions
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exp
exp2(C99)
expm1(C99)
log
log10
log1p(C99)
log2(C99)
Funzioni di risparmio energia
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Power functions
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sqrt
cbrt(C99)
hypot(C99)
pow
Funzioni trigonometriche e iperboliche
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Trigonometric and hyperbolic functions
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sinh
cosh
tanh
asinh(C99)
acosh(C99)
atanh(C99)
Errore e gamma funzioni
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Error and gamma functions
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erf(C99)
erfc(C99)
lgamma(C99)
tgamma(C99)
Più vicini operazioni di interi in virgola mobile
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Nearest integer floating point operations
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ceil
floor
round
lround
llround
(C99)
(C99)
(C99)
trunc(C99)
nearbyint(C99)
rint
lrint
llrint
(C99)
(C99)
(C99)
Floating funzioni di manipolazione di punti
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Floating point manipulation functions
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ldexp
scalbn
scalbln
(C99)
(C99)
ilogb(C99)
logb(C99)
Classificazione
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Classification
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fpclassify(C99)
isfinite(C99)
isinf(C99)
isnan(C99)
isnormal(C99)
signbit(C99)
Macro costanti
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Macro constants
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Defined in header <math.h>
float       tgammaf( float arg );
double      tgamma( double arg );
long double tgammal( long double arg );
Calcola la funzione gamma di arg.
Original:
Computes the funzione gamma of arg.
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Indice

[modifica] Parametri

arg -
valore in virgola mobile
Original:
floating point value
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[modifica] Valore di ritorno

Il valore della funzione gamma di arg, che è
0
targ-1
e-t dt
.
Original:
The value of the gamma function of arg, that is
0
targ-1
e-t dt
.
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Se arg è un numero naturale, tgamma(arg) è il fattoriale di arg-1.
Original:
If arg is a natural number, tgamma(arg) is the factorial of arg-1.
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[modifica] Eccezioni

Se arg è negativo, errore di dominio si può verificare e FE_INVALID può essere sollevata.
Original:
If arg is negative, domain error may occur and FE_INVALID may be raised.
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Se arg è zero, errore può verificarsi polo e FE_DIVBYZERO può essere sollevata.
Original:
If arg is zero, pole error may occur and FE_DIVBYZERO may be raised.
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Se arg è troppo grande, l'errore può verificarsi gamma e FE_OVERFLOW può essere sollevata.
Original:
If arg is too large, range error may occur and FE_OVERFLOW may be raised.
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Se arg è troppo piccolo, può verificarsi dell'errore gamma e FE_UNDERFLOW può essere sollevata.
Original:
If arg is too small, range error may occur and FE_UNDERFLOW may be raised.
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[modifica] Note

Molte implementazioni di calcolare l'esatto numero intero dominio fattoriale se l'argomento è un intero sufficientemente piccolo.
Original:
Many implementations calculate the exact integer-domain factorial if the argument is a sufficiently small integer.
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[modifica] Esempio

[modifica] Vedi anche

(C99)
logaritmo naturale della funzione gamma
Original:
natural logarithm of the gamma function
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(funzione) [edit]

[modifica] Collegamenti esterni

Weisstein, Eric W. "Gamma Function." Da MathWorld - Una risorsa Web Wolfram.
Original:
Weisstein, Eric W. "Gamma Function." From MathWorld--A Wolfram Web Resource.
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