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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>

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< cpp‎ | numeric‎ | valarray

 
 
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
 
 
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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目次

[編集] 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
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vy, vx -
値の逆正接を計算する
Original:
values to compute inverse tangent of
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[編集] 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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[編集] 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::valarraystd::slice_arraystd::gslice_arraystd::mask_arraystd::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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[編集]

[編集] も参照してください

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
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(関数) [edit]