Varianti

    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>

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    <metanoindex/>

     
    C++
     
    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
     
    I numeri complessi
    Membri funzioni
    Original:
    Member functions
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    complex::complex
    complex::operator=
    complex::real
    complex::imag
    complex::operator+=
    complex::operator-=
    complex::operator*=
    complex::operator/=
    Non membri funzioni
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    Non-member functions
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    operator==
    operator!=
    operator<<
    operator>>
    real
    imag
    abs
    arg
    norm
    conj
    proj(C++11)
    polar
    Funzioni esponenziali
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    Exponential functions
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    exp
    log
    log10
    Funzioni di risparmio energia
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    Power functions
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    pow
    sqrt
    Funzioni trigonometriche
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    Trigonometric functions
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    asin(C++11)
    acos(C++11)
    atan(C++11)
    Funzioni iperboliche
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    Hyperbolic functions
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    asinh(C++11)
    acosh(C++11)
    atanh(C++11)
     
    <tbody> </tbody>
    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
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    Valore di ritorno

    la radice quadrata di x.
    Original:
    the square root of x.
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    Vedi anche
    potenza complessa, uno o entrambi gli argomenti può essere un numero complesso
    Original:
    complex power, one or both arguments may be a complex number
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    (funzione di modello) [modifica]