std::atan2<div class="t-tr-text">(Std :: valarray)<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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Compile-time rationale Arithmetik(C++11)

Generische numerische Operationen 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.

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std::valarray

Member-Funktionen 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>>=
Non-Member-Funktionen 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>=
Helper-Klassen 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

 

definiert 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)

Berechnet den Arcustangens von y/x der Benutzung der Zeichen von Argumenten korrekt zu bestimmen Quadranten .

Original:

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

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1)

Berechnet den Arkustangens von jedem Paar von entsprechenden Werten aus y und x .

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

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Das Verhalten ist, wenn x.size()!= y.size() undefined .

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

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2)

Berechnet den Arcustangens von vx und jeder Wert in der numerischen Array y .

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

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3)

Berechnet den Arcustangens von vy und jeder Wert in der numerischen Array x .

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

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Parameter

x, y	-	numerische Arrays zu berechnen inverse Tangens 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	-	Werte zur Berechnung des Arkustangens 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.

Rückgabewert

Ein numerisches Array mit den Ergebnissen der Berechnung des Arkustangens .

Original:

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

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Notes

Unqualifizierte Funktion (atan2) verwendet wird, um die Berechnung auszuführen. Wenn diese Funktion nicht verfügbar ist, wird std::atan2 verwendet wird wegen Argument abhängig Lookup .

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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Die Funktion kann mit dem Rückgabetyp anders std::valarray umgesetzt werden. In diesem Fall weist die Ersetzungsart die folgenden Eigenschaften:

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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• Alle const Elementfunktionen std::valarray bereitgestellt werden .

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

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• std::valarray, std::slice_array, std::gslice_array, std::mask_array und std::indirect_array kann aus dem Ersatz-Typ gebaut werden .

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  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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• Alle Funktionen Annehmen eines Argumente des Typs conststd::valarray& sollten auch akzeptieren, den Austausch Typ .

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

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• Alle Funktionen mit zwei Parametern vom Typ conststd::valarray& sollten akzeptieren, jede Kombination von conststd::valarray& und den Ersatz Typ .

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

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Siehe auch

atan2	Arcustangens mit Schildern Quadranten bestimmen 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. (Funktion)