std::sqrt<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>

<metanoindex/>

 

C++

Linguaggio

Concetti

Libreria di Utilità

Stringhe

Contenitori

Algoritmi

Iteratori

Libreria matematca

Input/output

Localizzazione

Espressioni regolari (C++11)

Operazioni atomicche (C++11)

Multithreading (C++11)

 

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 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

Membri funzioni 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 membri funzioni 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 classi 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

 

<tbody> </tbody>

Elemento definito nell'header <valarray>
template< class T > valarray<T> sqrt( const valarray<T>& va );

For each element in va computes the square root of the value of the element.

Parametri

va

-

matrice valore per applicare l'operazione 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.

Valore di ritorno

Value array containing square roots of the values in va.

Note

Funzione non qualificato (sqrt) viene utilizzato per eseguire il calcolo. Se tale funzione non è disponibile, std::sqrt viene utilizzato a causa di ricerca tesi a carico.

Original:

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

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

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:

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

• Tutte le funzioni di membro const std::valarray sono forniti.

  Original:

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

  The text has been machine-translated via Google Translate.
  You can help to correct and verify the translation. Click here for instructions.
• 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.

  The text has been machine-translated via Google Translate.
  You can help to correct and verify the translation. Click here for instructions.
• 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.

  The text has been machine-translated via Google Translate.
  You can help to correct and verify the translation. Click here for instructions.
• 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.

  The text has been machine-translated via Google Translate.
  You can help to correct and verify the translation. Click here for instructions.

Possibile implementazione

template<class T> valarray<T> sqrt(const valarray<T>& va) { valarray<T> other = va; for (T &i : other) { i = sqrt(i); } return other; }