std::exp<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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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>=
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slice_array gslice_array indirect_array	slice gslice mask_array

 

definiert in Header <valarray>
template<class T > valarray<T> exp(const valarray<T>& va );

Für jedes Element in va berechnet e der Kraft gleich dem Wert des Elements angehoben .

Original:

For each element in va computes e raised to the power equal to the value of the element.

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Parameter

va

-

Wert-Array, um die Operation zu verarbeiten Original: value array to apply the operation to The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Rückgabewert

Wert Array mit e durch die Werte in va erhöht .

Original:

Value array containing e raised by the values in va.

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Notes

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

Original:

Unqualified function (exp) is used to perform the computation. If such function is not available, std::exp 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 .

  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 und std::indirect_array kann aus dem Ersatz-Typ gebaut werden .

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

  Original:

  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 .

  Original:

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

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Mögliche Implementierung

template<class T > valarray<T> exp(const valarray<T>& va ){ valarray<T> other = va;for(T &i : other){ i = exp(i);}return other;// proxy object may be returned}

Beispiel

Dieses Beispiel zeigt die Eulersche Identität eiπ
= -1 und die damit verbundenen Exponenten .

Original:

This example demonstrates the Euler's identity eiπ
= -1 and the related exponents.

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#include <iostream>#include <complex>#include <valarray>   int main(){constdouble pi =std::acos(-1);std::valarray<std::complex<double>> v ={{0, 0}, {0, pi/2}, {0, pi}, {0, 3*pi/2}, {0, 2*pi}};std::valarray<std::complex<double>> v2 =std::exp(v);for(auto n : v2){std::cout<<std::fixed<< n <<'\n';}}

Output:

(1.000000,0.000000) (0.000000,1.000000) (-1.000000,0.000000) (-0.000000,-1.000000) (1.000000,-0.000000)

Siehe auch

exp	Renditen e an die angegebene Leistung (ex) angehoben Original: returns e raised to the given power (ex) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (Funktion)
exp(std::complex)	complex base e exponential (Funktions-Template)