std::pow

 

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Generische numerische Operationen Original: Generic numeric operations The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

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Gemeinsame mathematischen Funktionen

Funktionen Original: Functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
Grundlegende Bedienung Original: Basic operations The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
abs(int) labs llabs imaxabs (C++11) abs(float) fabs div ldiv lldiv imaxdiv (C++11) fmod	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 Original: Exponential functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
exp exp2 (C++11) expm1 (C++11)	log log10 log1p (C++11) log2 (C++11)
Power-Funktionen Original: Power functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
sqrt cbrt (C++11)	hypot (C++11) pow
Trigonometrische und hyperbolische Funktionen Original: Trigonometric and hyperbolic functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
sin cos tan asin acos atan atan2	sinh cosh tanh asinh (C++11) acosh (C++11) atanh (C++11)

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erf (C++11) erfc (C++11)	lgamma (C++11) tgamma (C++11)
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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)
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HUGE_VALF HUGE_VAL HUGE_VALL (C++11) (C++11) INFINITY (C++11) NAN (C++11) math_errhandling MATH_ERRNO MATH_ERREXCEPT (C++11)	FP_NORMAL FP_SUBNORMAL FP_ZERO FP_INFINITE FP_NAN (C++11) (C++11) (C++11) (C++11) (C++11)

 

definiert in Header <cmath>
float       pow(float base, float exp );	(1)
double      pow(double base, double exp );	(2)
longdouble pow(longdouble base, longdouble exp );	(3)
Promoted    pow( Arithmetic base, Arithmetic exp );	(4)	(seit C++11)
float       pow(float base, int iexp );	(5)	(bis C + +11)
double      pow(double base, int iexp );	(6)	(bis C + +11)
longdouble pow(longdouble base, int iexp );	(7)	(bis C + +11)

Berechnet den Wert von base potenziert exp oder iexp .

Original:

Computes the value of base raised to the power exp or iexp.

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4)

Ein Satz von Überlastungen oder eine Funktion Vorlage für alle Kombinationen von Argumenten des arithmetischen Typ mit 1-3 nicht abgedeckt). Wenn ein Argument hat integralen Typ, wird es double gegossen. Ist eines der Argumente longdouble, dann der Rückgabetyp Promoted ist auch longdouble, da sonst der Rückgabetyp immer double .

Original:

A set of overloads or a function template for all combinations of arguments of arithmetic type not covered by 1-3). If any argument has integral type, it is cast to double. If any argument is longdouble, then the return type Promoted is also longdouble, otherwise the return type is always double.

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Parameter

base	-	Basis als Fließkommazahl Original: base as floating point value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
exp	-	Exponent als Fließkommazahl Original: exponent as floating point value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
iexp	-	Exponenten als Integer-Wert Original: exponent as integer value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Rückgabewert

base erhöht durch Macht (exp oder iexp) .

Original:

base raised by power (exp or iexp).

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Domain-Fehler tritt auf, wenn base 0 ist und exp kleiner oder gleich ​0​. NAN wird in diesem Fall wieder .

Original:

Domain error occurs if base is 0 and exp is less than or equal to ​0​. NAN is returned in that case.

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Domain-Fehler tritt auf, wenn base negativ ist und exp ist kein ganzzahliger Wert ist. NAN wird in diesem Fall wieder .

Original:

Domain error occurs if base is negative and exp is not an integer value. NAN is returned in that case.

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Bereichs-Fehler tritt auf, wenn ein Überlauf stattfindet. HUGEVAL wird in diesem Fall wieder .

Original:

Range error occurs if an overflow takes place. HUGEVAL is returned in that case.

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Notes

pow(float, int) gibt float bis C++11 zurück (per Überladung 5) aber double seit C++11 (per Überladung 4)

Original:

pow(float, int) returns float until C++11 (per overload 5) but returns double since C++11 (per overload 4)

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Siehe auch

exp	Renditen e an die angegebene Leistung (ex) angehoben Original: returns e raised to the given power (ex) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (Funktion)
log	berechnet natürlichen (base e) Logarithmus (zur Basis e) (ln(x)) Original: computes natural (base e) logarithm (to base e) (ln(x)) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (Funktion)
sqrt	berechnet Quadratwurzel (√x) Original: computes square root (√x) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (Funktion)
cbrt (C++11)	berechnet Kubikwurzel (3√x) Original: computes cubic root (3√x) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (Funktion)
pow(std::complex)	komplexe Leistung, eine oder beide Argumente kann eine komplexe Zahl sein Original: complex power, one or both arguments may be a complex number The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (Funktions-Template)
pow(std::valarray)	wendet die Funktion std::pow zwei valarrays oder valarray und einem Wert Original: applies the function std::pow to two valarrays or a valarray and a value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (Funktions-Template)