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std::sqrt<div class="t-tr-text">(Std :: complexe)<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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Déclaré dans l'en-tête

<complex>

template< class T > complex<T> sqrt( const complex<T>& x );

Calcule la racine carrée de la x nombre complexe .

Original:

Computes the square root of the complex number x.

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Les coupures de branche sont le long de l'axe réel négatif. sqrt calcule la racine carrée de l'ordre de la demi-plan droit. Si x est un nombre réel négatif, la valeur de retour va se coucher sur l'axe imaginaire positive .

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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Paramètres

x -

nombre complexe de prendre la racine carrée de

Original:

complex number to take the square root of

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Retourne la valeur

la racine carrée de x .

Original:

the square root of x.

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Voir aussi

puissance complexe, une ou deux arguments peut être un nombre complexe

Original:

complex power, one or both arguments may be a complex number

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(fonction générique) [edit]