Namensräume
Varianten
Aktionen

std::tgamma

Aus cppreference.com
< cpp‎ | numeric‎ | math

This page has been machine-translated from the English version of the wiki using Google Translate.

The translation may contain errors and awkward wording. Hover over text to see the original version. You can help to fix errors and improve the translation. For instructions click here.

Click here for the English version of this page

 
C++
 
Numerik-Bibliothek
Gemeinsame mathematischen Funktionen
Floating-Point-Umgebung
Komplexe Zahlen
Numerische Arrays
Pseudo-Zufallszahlen
Compile-time rationale Arithmetik (C++11)
Generische numerische Operationen
Original:
Generic numeric operations
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
iota(C++11)
accumulate
inner_product
adjacent_difference
partial_sum
 
Gemeinsame mathematischen Funktionen
Funktionen
Original:
Functions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Grundlegende Bedienung
Original:
Basic operations
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
remainder(C++11)
remquo(C++11)
fma(C++11)
fmax(C++11)
fmin(C++11)
fdim(C++11)
nan
nanf
nanl		(C++11)
(C++11)
(C++11)
Exponentialfunktionen
Original:
Exponential functions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
exp
exp2(C++11)
expm1(C++11)
log
log10
log1p(C++11)
log2(C++11)
Power-Funktionen
Original:
Power functions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
sqrt
cbrt(C++11)
hypot(C++11)
pow
Trigonometrische und hyperbolische Funktionen
Original:
Trigonometric and hyperbolic functions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
sinh
cosh
tanh
asinh(C++11)
acosh(C++11)
atanh(C++11)
Fehler-und Gamma-Funktionen
Original:
Error and gamma functions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
erf(C++11)
erfc(C++11)
lgamma(C++11)
tgamma(C++11)
Nächste ganze Zahl Fließkomma-Operationen
Original:
Nearest integer floating point operations
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
ceil
floor
round
lround
llround		(C++11)
(C++11)
(C++11)
trunc(C++11)
nearbyint(C++11)
rint
lrint
llrint		(C++11)
(C++11)
(C++11)
Floating-Point-Manipulation Funktionen
Original:
Floating point manipulation functions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
ldexp
scalbn
scalbln		(C++11)
(C++11)
ilogb(C++11)
logb(C++11)
frexp
modf
nextafter
nexttoward		(C++11)
(C++11)
copysign(C++11)
Klassifizierung / Vergleich
Original:
Classification/Comparison
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
fpclassify(C++11)
isfinite(C++11)
isinf(C++11)
isnan(C++11)
isnormal(C++11)
signbit(C++11)
isgreater(C++11)
isgreaterequal(C++11)
isless(C++11)
islessequal(C++11)
islessgreater(C++11)
isunordered(C++11)
Makro Konstanten
Original:
Macro constants
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
FP_NORMAL
FP_SUBNORMAL
FP_ZERO
FP_INFINITE
FP_NAN		(C++11)
(C++11)
(C++11)
(C++11)
(C++11)
 
definiert in Header <cmath>
float       tgamma( float arg );
 (seit C++11)
double      tgamma( double arg );
 (seit C++11)
long double tgamma( long double arg );
 (seit C++11)
double      tgamma( Integral arg );
 (seit C++11)
Berechnet den Gamma-Funktion der arg .
Original:
Computes the Gamma-Funktion of arg.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

Inhaltsverzeichnis

[Bearbeiten] Parameter

arg -
Floating-Point-Wert
Original:
floating point value
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[Bearbeiten] Rückgabewert

Der Wert der Gammafunktion arg, das heißt ∫∞
0targ-1
 e-t dt .
Original:
The value of the gamma function of arg, that is ∫∞
0targ-1
 e-t dt.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Wenn arg eine natürliche Zahl ist, ist std::tgamma(arg) die Fakultät arg-1 .
Original:
If arg is a natural number, std::tgamma(arg) is the factorial of arg-1.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[Bearbeiten] Ausnahmen

Wenn arg negativ ist, kann Domain-Fehler auftreten, und FE_INVALID angehoben werden kann .
Original:
If arg is negative, domain error may occur and FE_INVALID may be raised.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Wenn arg Null ist, kann pole Fehler auftreten und FE_DIVBYZERO angehoben werden kann .
Original:
If arg is zero, pole error may occur and FE_DIVBYZERO may be raised.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Wenn arg zu groß ist, können die Reichweite Fehler auftreten und FE_OVERFLOW angehoben werden kann .
Original:
If arg is too large, range error may occur and FE_OVERFLOW may be raised.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Wenn arg zu klein ist, können die Reichweite Fehler auftreten und FE_UNDERFLOW angehoben werden kann .
Original:
If arg is too small, range error may occur and FE_UNDERFLOW may be raised.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[Bearbeiten] Notes

Viele Implementierungen berechnet die genaue Integer-Domain-faktoriellen, wenn das Argument eine hinreichend kleine Zahl .
Original:
Many implementations calculate the exact integer-domain factorial if the argument is a sufficiently small integer.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[Bearbeiten] Beispiel

#include <iostream>
#include <cmath>
double factorial(double arg)
{
    return std::tgamma(arg + 1);
}
int main()
{
    std::cout << "The factorial of 5 is " << factorial(5) << '\n'
              << "The factorial of 100 is " << factorial(100) << '\n';
}

Output: 

The factorial of 5 is 120
The factorial of 100 is 9.33262e+157


[Bearbeiten] Siehe auch

(C++11)
natürlichen Logarithmus der Gamma-Funktion
Original:
natural logarithm of the gamma function
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(Funktion) [edit]

[Bearbeiten] Externer Links

Weisstein, Eric W. "Gamma Function." Von MathWorld - A Wolfram Web Resource .
Original:
Weisstein, Eric W. "Gamma Function." From MathWorld--A Wolfram Web Resource.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Von „https://de.cppreference.com/mwiki/index.php?title=cpp/numeric/math/tgamma&oldid=29783“