名前空間
変種
操作

tgamma

提供: cppreference.com
< c‎ | numeric‎ | math

 
 
 
一般的な数学関数
機能します
Original:
Functions
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基本操作
Original:
Basic operations
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remainder(C99)
remquo(C99)
fma(C99)
fmax(C99)
fmin(C99)
fdim(C99)
nan
nanf
nanl
(C99)
(C99)
(C99)
指数関数
Original:
Exponential functions
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exp
exp2(C99)
expm1(C99)
log
log10
log1p(C99)
log2(C99)
電源機能
Original:
Power functions
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sqrt
cbrt(C99)
hypot(C99)
pow
三角関数や双曲線関数
Original:
Trigonometric and hyperbolic functions
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sinh
cosh
tanh
asinh(C99)
acosh(C99)
atanh(C99)
エラーおよびガンマ関数
Original:
Error and gamma functions
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erf(C99)
erfc(C99)
lgamma(C99)
tgamma(C99)
最も近い整数の浮動小数点演算
Original:
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)
点操作関数に浮かぶ
Original:
Floating point manipulation functions
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ldexp
scalbn
scalbln
(C99)
(C99)
ilogb(C99)
logb(C99)
分類
Original:
Classification
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fpclassify(C99)
isfinite(C99)
isinf(C99)
isnan(C99)
isnormal(C99)
signbit(C99)
マクロ定数
Original:
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 );
ガンマ関数argを計算.
Original:
Computes the ガンマ関数 of arg.
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目次

[編集] パラメータ

arg -
浮動小数点値
Original:
floating point value
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[編集] 値を返します

argです
0
targ-1
e-t dt
のガンマ関数の値.
Original:
The value of the gamma function of arg, that is
0
targ-1
e-t dt
.
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argは自然数である場合、tgamma(arg)arg-1の階乗です.
Original:
If arg is a natural number, tgamma(arg) is the factorial of arg-1.
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[編集] 例外

argが負の場合、ドメインエラーが発生することがありますとFE_INVALIDが発生する場合があります.
Original:
If arg is negative, domain error may occur and FE_INVALID may be raised.
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argがゼロの場合、極エラーが発生し、FE_DIVBYZEROが発生する場合があります.
Original:
If arg is zero, pole error may occur and FE_DIVBYZERO may be raised.
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argが大きすぎる場合、範囲エラーが発生することがありますとFE_OVERFLOWが発生する場合があります.
Original:
If arg is too large, range error may occur and FE_OVERFLOW may be raised.
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argが小さすぎる場合、範囲エラーが発生することがありますとFE_UNDERFLOWが発生する場合があります.
Original:
If arg is too small, range error may occur and FE_UNDERFLOW may be raised.
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[編集] ノート

引数が十分に小さい整数であれば多くの実装では、正確な整数ドメイン階乗を計算.
Original:
Many implementations calculate the exact integer-domain factorial if the argument is a sufficiently small integer.
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[編集]

[編集] も参照してください

(C99)
ガンマ関数の自然対数
Original:
natural logarithm of the gamma function
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(機能) [edit]

[編集] 外部リンク

Weisstein, Eric W. "Gamma Function."MathWorldのから - WolframのWebリソース.
Original:
Weisstein, Eric W. "Gamma Function." From MathWorld--A Wolfram Web Resource.
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