std::atan2<div class="t-tr-text">（スタンダード:: valarrayは）<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">(std::valarray)</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>

 

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

 

std::valarray

メンバ関数 Original: Member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
valarray::valarray valarray::~valarray valarray::operator= valarray::operator[] valarray::swap valarray::size valarray::resize valarray::sum valarray::min valarray::max valarray::shift valarray::cshift valarray::apply	valarray::operator+ valarray::operator- valarray::operator~ valarray::operator! valarray::operator+= valarray::operator-= valarray::operator*= valarray::operator/= valarray::operator%= valarray::operator&= valarray::operator|= valarray::operator^= valarray::operator<<= valarray::operator>>=
非メンバ関数 Original: Non-member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
swap (C++11) begin (C++11) end (C++11) abs exp log log10 pow sqrt sin cos tan asin acos atan atan2 sinh cosh tanh	operator* operator/ operator% operator+ operator- operator^ None operator& operator| operator<< operator>> operator&& operator None operator== operator!= operator< operator> operator<= operator>=
ヘルパークラス Original: Helper classes The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
slice_array gslice_array indirect_array	slice gslice mask_array

 

Defined in header <valarray>
template< class T > valarray<T> atan2( const valarray<T>& y, const valarray<T>& x );	(1)
template< class T > valarray<T> atan2( const valarray<T>& y, const T& vx );	(2)
template< class T > valarray<T> atan2( const T& vy, const valarray<T>& x );	(3)

正しく象限を決定するための引数の符号を用いてy/xの逆正接を計算.

Original:

Computes the inverse tangent of y/x using the signs of arguments to correctly determine quadrant.

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1)

yから対応する値の各ペアの逆正接を計算し、x.

Original:

Computes the inverse tangent of each pair of corresponding values from y and x.

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x.size() != y.size()場合の動作は未定義です.

Original:

The behavior is undefined if x.size() != y.size().

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2)

vxと数値配列内の各値yの逆正接を計算します.

Original:

Computes the inverse tangent of vx and each value in the numeric array y.

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3)

vyと数値配列内の各値xの逆正接を計算します.

Original:

Computes the inverse tangent of vy and each value in the numeric array x.

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パラメータ

x, y	-	の逆正接を計算するための数値配列 Original: numeric arrays to compute inverse tangent of The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
vy, vx	-	値の逆正接を計算する Original: values to compute inverse tangent of 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

逆正接の計算の結果を含む数値配列.

Original:

A numeric array containing the results of computation of inverse tangent.

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ノート

修飾されていない機能（atan2）計算を実行するために使用されます。そのような機能が利用できない場合、std::atan2は、引数依存の照合のために使用され.

Original:

Unqualified function (atan2) is used to perform the computation. If such function is not available, std::atan2 is used due to argument dependent lookup.

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関数はstd::valarrayから別の戻り値型で実装することができます。この場合、交換型は、次のプロパティがあります

Original:

The function can be implemented with the return type different from std::valarray. In this case, the replacement type has the following properties:

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• constのすべてstd::valarrayメンバ関数が用意されています.

  Original:

  All const member functions of std::valarray are provided.

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• std::valarray、std::slice_array、std::gslice_array、std::mask_arrayとstd::indirect_array交換タイプから構築することができます.

  Original:

  std::valarray, std::slice_array, std::gslice_array, std::mask_array and std::indirect_array can be constructed from the replacement type.

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• タイプconst std::valarray&の引数を受け付ける機能は、すべての交換タイプを受け入れる必要があります.

  Original:

  All functions accepting a arguments of type const std::valarray& should also accept the replacement type.

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• タイプconst std::valarray&の2つの引数を受け入れるすべての機能がconst std::valarray&と交換タイプのすべての組み合わせを受け入れるべき.

  Original:

  All functions accepting two arguments of type const std::valarray& should accept every combination of const std::valarray& and the replacement type.

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参照

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. (関数)