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    <metanoindex/>

     
    C++
     
    Numerik-Bibliothek
    Gemeinsame mathematischen Funktionen
    Floating-Point-Umgebung
    Komplexe Zahlen
    Numerische Arrays
    Pseudo-Zufallszahlen
    Compile-time rationale Arithmetik (C++11)
    Generische numerische Operationen
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    Generic numeric operations
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    iota(C++11)
    accumulate
    inner_product
    adjacent_difference
    partial_sum
     
    Gemeinsame mathematischen Funktionen
    Funktionen
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    Functions
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    Grundlegende Bedienung
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    Basic operations
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    remainder(C++11)
    remquo(C++11)
    fma(C++11)
    fmax(C++11)
    fmin(C++11)
    fdim(C++11)
    nan
    nanf
    nanl    		(C++11)
    (C++11)
    (C++11)
    Exponentialfunktionen
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    Exponential functions
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    exp
    exp2(C++11)
    expm1(C++11)
    log
    log10
    log1p(C++11)
    log2(C++11)
    Power-Funktionen
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    Power functions
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    sqrt
    cbrt(C++11)
    hypot(C++11)
    pow
    Trigonometrische und hyperbolische Funktionen
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    Trigonometric and hyperbolic functions
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    sinh
    cosh
    tanh
    asinh(C++11)
    acosh(C++11)
    atanh(C++11)
    Fehler-und Gamma-Funktionen
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    Error and gamma functions
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    erf(C++11)
    erfc(C++11)
    lgamma(C++11)
    tgamma(C++11)
    Nchste ganze Zahl Fliekomma-Operationen
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    Nearest integer floating point operations
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    ceil
    floor
    round
    lround
    llround    		(C++11)
    (C++11)
    (C++11)
    trunc(C++11)
    nearbyint(C++11)
    rint
    lrint
    llrint    		(C++11)
    (C++11)
    (C++11)
    Floating-Point-Manipulation Funktionen
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    Floating point manipulation functions
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    ldexp
    scalbn
    scalbln    		(C++11)
    (C++11)
    ilogb(C++11)
    logb(C++11)
    frexp
    modf
    nextafter
    nexttoward    		(C++11)
    (C++11)
    copysign(C++11)
    Klassifizierung / Vergleich
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    Classification/Comparison
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    fpclassify(C++11)
    isfinite(C++11)
    isinf(C++11)
    isnan(C++11)
    isnormal(C++11)
    signbit(C++11)
    isgreater(C++11)
    isgreaterequal(C++11)
    isless(C++11)
    islessequal(C++11)
    islessgreater(C++11)
    isunordered(C++11)
    Makro Konstanten
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    Macro constants
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    FP_NORMAL
    FP_SUBNORMAL
    FP_ZERO
    FP_INFINITE
    FP_NAN    		(C++11)
    (C++11)
    (C++11)
    (C++11)
    (C++11)
     
    <tbody> </tbody>
    definiert in Header <cmath>
    float trunc( float arg );
    		 (seit C++11)
    double trunc( double arg );
    		 (seit C++11)
    long double trunc( long double arg );
    		 (seit C++11)
    double trunc( Integral arg );
    		 (seit C++11)
    Berechnet nchsten ganzzahligen nicht betragsmig grer als arg .
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    Computes nearest integer not greater in magnitude than arg.
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    Parameter

    arg -
    Floating-Point-Wert
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    floating point value
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    Rckgabewert

    Nchste Ganzzahl nicht betragsmig grer als arg .
    Original:
    Nearest integer not greater in magnitude than arg.
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    [[Image:
    Rckgabewert
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    {{{2}}}
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    |200x200px]]
    Argument

    Notes

    Die Integer-Wert kann immer durch die gegebene Fliekomma-Typ dargestellt werden .
    Original:
    The integer value can be always represented by the given floating point type.
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    Siehe auch
    nchste ganze Zahl nicht grer als der gegebene Wert
    Original:
    nearest integer not greater than the given value
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    (Funktion) [edit]
    nchste ganze Zahl nicht kleiner als der gegebene Wert
    Original:
    nearest integer not less than the given value
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    (Funktion) [edit]
    (C++11)
    (C++11)
    (C++11)
    nchste ganze Zahl, Rundung von Null weg in halbwegs Fllen
    Original:
    nearest integer, rounding away from zero in halfway cases
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    (Funktion) [edit]
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