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std::pow

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Defined in header <cmath>
float       pow( float base, float exp );
(1)
double      pow( double base, double exp );
(2)
long double pow( long double base, long double 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)
long double pow( long double 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 long double, dann der Rückgabetyp Promoted ist auch long double, 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 long double, then the return type Promoted is also long double, otherwise the return type is always double.
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Inhaltsverzeichnis

[Bearbeiten] Parameter

base -
Basis als Fließkommazahl
Original:
base as floating point value
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exp -
Exponent als Fließkommazahl
Original:
exponent as floating point value
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iexp -
Exponenten als Integer-Wert
Original:
exponent as integer value
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[Bearbeiten] 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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[Bearbeiten] Notes

pow(float, int) kehrt float bis C + 11 (per Überlastschutz 5) kehrt aber double da C + 11 (per Überlastschutz 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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[Bearbeiten] Siehe auch

Renditen e an die angegebene Leistung (ex) angehoben
Original:
returns e raised to the given power (ex)
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(Funktion) [edit]
berechnet natürlichen (base e) Logarithmus (zur Basis e) (ln(x))
Original:
computes natural (base e) logarithm (to base e) (ln(x))
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(Funktion) [edit]
berechnet Quadratwurzel (x)
Original:
computes square root (x)
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(Funktion) [edit]
(C++11)
berechnet Kubikwurzel (3x)
Original:
computes cubic root (3x)
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(Funktion) [edit]
komplexe Leistung, eine oder beide Argumente kann eine komplexe Zahl sein
Original:
complex power, one or both arguments may be a complex number
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(Funktions-Template) [edit]
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
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(Funktions-Template) [edit]