Namespace
Varianti

std::pow<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>

Da cppreference.com.
< cpp‎ | numeric‎ | valarray

 
 
Numeri libreria
Comuni funzioni matematiche
Virgola mobile ambiente
I numeri complessi
Array numerici
Pseudo-casuale generazione
In fase di compilazione aritmetica razionale (C++11)
Generici operazioni numeriche
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> pow( const valarray<T>& base, const valarray<T>& exp );
(1)
template< class T >
valarray<T> pow( const valarray<T>& base, const T& vexp );
(2)
template< class T >
valarray<T> pow( const T& vbase, const valarray<T>& exp );
(3)
Eleva un valore alla potenza.
Original:
Raises a value to a power.
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1)
Calcola i valori di ogni elemento della matrice numerica base elevato alla potenza specificata dall'elemento corrispondente dal exp matrice numerica.
Original:
Computes the values of each element in the numeric array base raised to the power specified by the corresponding element from the numeric array exp.
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Il comportamento è indefinito se base.size() != exp.size().
Original:
The behavior is undefined if base.size() != exp.size().
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2)
Calcola i valori di ogni elemento della matrice numerica base elevato alla potenza vexp.
Original:
Computes the values of each element in the numeric array base raised to the power vexp.
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3)
Calcola i valori di vbase elevato alla potenza definita dagli elementi della matrice numerica exp.
Original:
Computes the values of vbase raised to the power defined by the elements in the numeric array exp.
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Indice

[modifica] Parametri

base -
matrice contenente i valori numerici della base
Original:
numeric array containing the values of the base
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exp -
array numerico contenente i valori dell'esponente
Original:
numeric array containing the values of the exponent
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vbase -
un valore che definisce la base
Original:
a value defining the base
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vexp -
un valore che definisce l'esponente
Original:
a value defining the exponent
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[modifica] Valore di ritorno

Un array numerico contenente i risultati di elevamento a potenza.
Original:
A numeric array containing the results of exponentiation.
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[modifica] Note

Funzione non qualificato (pow) viene utilizzato per eseguire il calcolo. Se tale funzione non è disponibile, std::pow viene utilizzato a causa di ricerca tesi a carico.
Original:
Unqualified function (pow) is used to perform the computation. If such function is not available, std::pow is used due to argument dependent lookup.
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La funzione può essere implementata con il tipo restituito diverso da std::valarray. In questo caso, il tipo di sostituzione ha le seguenti proprietà:
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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  • Tutte le funzioni di membro const std::valarray sono forniti.
    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 std::indirect_array e può essere costruito con il tipo di sostituzione.
    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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  • Tutte le funzioni che accettano un argomento di const std::valarray& tipo devono anche accettare il tipo di sostituzione.
    Original:
    All functions accepting a arguments of type const std::valarray& should also accept the replacement type.
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  • Tutte le funzioni che accettano due argomenti di tipo const std::valarray& dovrebbe accettare ogni combinazione di const std::valarray& e il tipo di sostituzione.
    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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[modifica] Esempio

[modifica] Vedi anche

solleva un numero alla potenza data (xy)
Original:
raises a number to the given power (xy)
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(funzione) [edit]