Varianti

    expm1

    Da cppreference.com.
    < c | numeric | math

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    <metanoindex/>

     
    C
     
    Numeri
     
    Comuni funzioni matematiche
    Funzioni
    Original:
    Functions
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    Operazioni di 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)
    Funzioni esponenziali
    Original:
    Exponential functions
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    exp
    exp2(C99)
    expm1(C99)
    log
    log10
    log1p(C99)
    log2(C99)
    Funzioni di risparmio energia
    Original:
    Power functions
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    sqrt
    cbrt(C99)
    hypot(C99)
    pow
    Funzioni trigonometriche e iperboliche
    Original:
    Trigonometric and hyperbolic functions
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    sinh
    cosh
    tanh
    asinh(C99)
    acosh(C99)
    atanh(C99)
    Errore e gamma funzioni
    Original:
    Error and gamma functions
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    erf(C99)
    erfc(C99)
    lgamma(C99)
    tgamma(C99)
    Più vicini operazioni di interi in virgola mobile
    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)
    Floating funzioni di manipolazione di punti
    Original:
    Floating point manipulation functions
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    ldexp
    scalbn
    scalbln    		(C99)
    (C99)
    ilogb(C99)
    logb(C99)
    Classificazione
    Original:
    Classification
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    fpclassify(C99)
    isfinite(C99)
    isinf(C99)
    isnan(C99)
    isnormal(C99)
    signbit(C99)
    Macro costanti
    Original:
    Macro constants
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    <tbody> </tbody>
    Elemento definito nell'header <math.h>
    float expm1f( float arg );
    double expm1( double arg );
    long double expm1l( long double arg );
    Calcola la e (numero di Eulero, 2.7182818) elevato alla arg di potenza, meno 1. Questa funzione è più preciso l'espressione exp(arg)-1 arg se è vicino a zero.
    Original:
    Computes the e (Euler's number, 2.7182818) raised to the given power arg, minus 1. This function is more accurate than the expression exp(arg)-1 if arg is close to zero.
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    Parametri

    arg -
    valore in virgola mobile
    Original:
    floating point value
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    Valore di ritorno

    earg
    -1

    Se il risultato è troppo grande per il tipo di fondo, l'errore si verifica e gamma HUGE_VAL viene restituito.
    Original:
    If the result is too large for the underlying type, range error occurs and HUGE_VAL is returned.
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    Vedi anche
    ritorna e elevato alla potenza data (ex)
    Original:
    returns e raised to the given power (ex)
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    (funzione) [modifica]
    (C99)
    torna 2 elevato alla potenza data (2x)
    Original:
    returns 2 raised to the given power (2x)
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    (funzione) [modifica]
    C++ documentation for expm1