std::acos

 

C++

言語

コンセプト

ユーティリティライブラリ

ストリングスライブラリ

コンテナライブラリ

アルゴリズムライブラリ

イテレータライブラリ

ニューメリックスライブラリ

入力/出力ライブラリ

ローカライゼーションライブラリ

正規表現ライブラリ (C++11)

アトミック操作ライブラリ (C++11)

スレッドのサポートライブラリ (C++11)

 

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 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

 

一般的な数学関数

機能します Original: Functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
基本操作 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.
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 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)
電源機能 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
三角関数や双曲線関数 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.
sin cos tan asin acos atan atan2	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 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)
最も近い整数の浮動小数点演算 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)
点操作関数に浮かぶ 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)
分類/比較 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)
マクロ定数 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.
HUGE_VALF HUGE_VAL HUGE_VALL (C++11) (C++11) INFINITY (C++11) NAN (C++11) math_errhandling MATH_ERRNO MATH_ERREXCEPT (C++11)	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       acos( float arg );
double      acos( double arg );
long double acos( long double arg );
double      acos( Integral arg );		(C + + 11以来)

argの逆余弦を計算します

Original:

Computes arc cosine of arg

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パラメータ

arg

-

浮動小数点値 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.

値を返します

argラジアンの範囲のラジアンで表わした[0; π]のアークコサイン.

Original:

Arc cosine of arg in radians in the range of [0; π] radians.

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argが範囲[-1.0; 1.0]外にある場合、ドメインエラーが発生します。 NANはその場合に返されます.

Original:

Domain error occurs if arg is outside the range [-1.0; 1.0]. NAN is returned in that case.

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例

#include <cmath>
#include <iostream>
 
int main()
{
    std::cout << "The number pi is " << std::acos(-1) << '\n';
}

Output:

The number pi is 3.14159

も参照してください

asin	アークサイン（arcsin(x)）を計算します Original: computes arc sine (arcsin(x)) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (機能)
atan	アークタンジェント（arctan(x)）を計算します Original: computes arc tangent (arctan(x)) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (機能)
atan2	象限を決定するために記号を使用するアークタンジェント、 Original: arc tangent, using signs to determine quadrants The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (機能)
cos	計算するコサイン（cos(x)） Original: computes cosine (cos(x)) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (機能)
acos(std::complex) (C++11)	複素数の逆余弦（arccos(z)）を計算します Original: computes arc cosine of a complex number (arccos(z)) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (関数テンプレート)
acos(std::valarray)	valarrayの各要素に関数を適用しstd::acos Original: applies the function std::acos to each element of valarray The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (関数テンプレート)