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    sqrt

    De cppreference.com
    < c | numeric | math

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    <metanoindex/>

     
    C
     
    Numerics
     
    Fonctions mathématiques courantes
    Fonctions
    Original:
    Functions
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    Opérations de base
    Original:
    Basic operations
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    remainder (C99)
    remquo (C99)
    fma (C99)
    fmax (C99)
    fmin (C99)
    fdim (C99)
    nan
    nanf
    nanl    		 (C99)
    (C99)
    (C99)
    Les fonctions exponentielles
    Original:
    Exponential functions
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    exp
    exp2 (C99)
    expm1 (C99)
    log
    log10
    log1p (C99)
    log2 (C99)
    Les fonctions de puissance
    Original:
    Power functions
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    sqrt
    cbrt (C99)
    hypot (C99)
    pow
    Les fonctions trigonométriques et hyperboliques
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    Trigonometric and hyperbolic functions
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    sinh
    cosh
    tanh
    asinh (C99)
    acosh (C99)
    atanh (C99)
    Erreur fonctions et gamma
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    Error and gamma functions
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    erf (C99)
    erfc (C99)
    lgamma (C99)
    tgamma (C99)
    Entier le plus proche opérations en virgule flottante
    Original:
    Nearest integer floating point operations
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    ceil
    floor
    round
    lround
    llround    		 (C99)
    (C99)
    (C99)
    trunc (C99)
    nearbyint (C99)
    rint
    lrint
    llrint    		 (C99)
    (C99)
    (C99)
    Flottant fonctions de manipulation de points
    Original:
    Floating point manipulation functions
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    ldexp
    scalbn
    scalbln    		 (C99)
    (C99)
    ilogb (C99)
    logb (C99)
    Classification
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    Classification
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    fpclassify (C99)
    isfinite (C99)
    isinf (C99)
    isnan (C99)
    isnormal (C99)
    signbit (C99)
    Macro constantes
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    Macro constants
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    FP_NORMAL
    FP_SUBNORMAL
    FP_ZERO
    FP_INFINITE
    FP_NAN    		 (C99)
    (C99)
    (C99)
    (C99)
    (C99)
     
    <tbody> </tbody>
    Déclaré dans l'en-tête <math.h>
    float sqrtf( float arg );
    double sqrt( double arg );
    long double sqrtl( long double arg );
    Calcule la racine carrée de arg .
    Original:
    Computes square root of arg.
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    Paramètres

    arg -
    virgule flottante ou une valeur entière
    Original:
    floating point or integer value
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    Retourne la valeur

    Racine carrée de arg .
    Original:
    Square root of arg.
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    Erreur de domaine se produit si arg est négatif. NAN est retourné dans ce cas .
    Original:
    Domain error occurs if arg is negative. NAN is returned in that case.
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    Voir aussi

    (C99)
    calcule la racine cubique (3√x)
    Original:
    computes cubic root (3√x)
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    (fonction) [edit]
    soulève un certain nombre à la puissance donnée (xy)
    Original:
    raises a number to the given power (xy)
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    (fonction) [edit]
    C++ documentation for sqrt