std::sqrt<div class="t-tr-text">(Std :: complesso)<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::complex)</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>

 

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

 

I numeri complessi

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.
complex::complex
complex::operator=
complex::real
complex::imag
complex::operator+= complex::operator-= complex::operator*= complex::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.
operator== operator!=
operator<< operator>>
real
imag
abs
arg
norm
conj
proj (C++11)
polar
Funzioni esponenziali Original: Exponential functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
exp
log
log10
Funzioni di risparmio energia Original: Power functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
pow
sqrt
Funzioni trigonometriche Original: Trigonometric functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
sin cos tan	asin (C++11) acos (C++11) atan (C++11)
Funzioni iperboliche Original: Hyperbolic functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
sinh cosh tanh	asinh (C++11) acosh (C++11) atanh (C++11)

 

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

Calcola la radice quadrata del numero complesso x.

Original:

Computes the square root of the complex number x.

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I rami sono lungo l'asse reale negativo. sqrt calcola la radice quadrata nella gamma del semipiano destro. Se x è un numero reale negativo, il valore di ritorno si trovano sull'asse immaginario positivo.

Original:

The branch cuts are along the negative real axis. sqrt computes the square root in the range of the right half-plane. If x is a negative real number, the return value will lie on the positive imaginary axis.

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Parametri

x

-

numero complesso di ottenere la radice quadrata di Original: complex number to take the square root of 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

la radice quadrata di x.

Original:

the square root of x.

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Vedi anche

pow(std::complex)	potenza complessa, uno o entrambi gli argomenti può essere un numero complesso Original: complex power, one or both arguments may be a complex number The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione di modello)