名前空間
変種
操作

std::abs<div class="t-tr-text">(フロート)<div class="t-tr-dropdown"><div><div><div class="t-tr-dropdown-arrow-border"></div><div class="t-tr-dropdown-arrow"></div><div class="t-tr-dropdown-h">Original:</div><div class="t-tr-dropdown-orig">(float)</div><div class="t-tr-dropdown-notes">The text has been machine-translated via [http://translate.google.com Google Translate].<br/> You can help to correct and verify the translation. Click [http://en.cppreference.com/w/Cppreference:MachineTranslations here] for instructions.</div></div></div></div></div>, std::fabs

提供: cppreference.com
< cpp‎ | numeric‎ | math

 
 
ニューメリックスライブラリ
一般的な数学関数
浮動小数点環境
複素数
数値配列
擬似乱数生成
コンパイル時有理数演算 (C++11)
汎用の数値演算
Original:
Generic numeric operations
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iota(C++11)
accumulate
inner_product
adjacent_difference
partial_sum
 
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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abs(int)
labs
llabs
imaxabs



(C++11)
abs(float)
fabs
div
ldiv
lldiv
imaxdiv



(C++11)
fmod
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)
指数関数
Original:
Exponential functions
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exp
exp2(C++11)
expm1(C++11)
log
log10
log1p(C++11)
log2(C++11)
電源機能
Original:
Power functions
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sqrt
cbrt(C++11)
hypot(C++11)
pow
三角関数や双曲線関数
Original:
Trigonometric and hyperbolic functions
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sinh
cosh
tanh
asinh(C++11)
acosh(C++11)
atanh(C++11)
エラーおよびガンマ関数
Original:
Error and gamma functions
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erf(C++11)
erfc(C++11)
lgamma(C++11)
tgamma(C++11)
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
(C++11)
(C++11)
(C++11)
trunc(C++11)
nearbyint(C++11)
rint
lrint
llrint
(C++11)
(C++11)
(C++11)
点操作関数に浮かぶ
Original:
Floating point manipulation functions
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ldexp
scalbn
scalbln
(C++11)
(C++11)
ilogb(C++11)
logb(C++11)
frexp
modf
nextafter
nexttoward
(C++11)
(C++11)
copysign(C++11)
分類/比較
Original:
Classification/Comparison
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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)
マクロ定数
Original:
Macro constants
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FP_NORMAL
FP_SUBNORMAL
FP_ZERO
FP_INFINITE
FP_NAN
(C++11)
(C++11)
(C++11)
(C++11)
(C++11)
 
Defined in header <cmath>
float       abs( float arg );
double      abs( double arg );
long double abs( long double arg );
float       fabs( float arg );
double      fabs( double arg );
long double fabs( long double arg );
double      fabs( Integral arg );
(C++11およびそれ以降)
浮動小数点値argの絶対値を計算する.
Original:
Computes the absolute value of a floating point value arg.
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[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の絶対値(|arg|
Original:
the absolute value of arg (|arg|)
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[編集] も参照してください

整数値(|x|)の絶対値を計算します
Original:
computes absolute value of an integral value (|x|)
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(関数) [edit]
(C++11)
チェック与えられた数値が負の場合
Original:
checks if the given number is negative
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(関数) [edit]
複素数の絶対値を返します
Original:
returns the magnitude of a complex number
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(関数テンプレート) [edit]
valarrayの各要素に関数を適用しstd::abs
Original:
applies the function std::abs to each element of valarray
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(関数テンプレート) [edit]