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std::expm1

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< cpp‎ | numeric‎ | math

 
 
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Defined in header <cmath>
float       expm1( float arg );
(seit C++11)
double      expm1( double arg );
(seit C++11)
long double expm1( long double arg );
(seit C++11)
double      expm1( Integral arg );
(seit C++11)
Berechnet den e (Eulersche Zahl, 2.7182818) angehoben, um die Macht gegeben arg, minus 1. Diese Funktion ist genauer als der Ausdruck std::exp(arg)-1 wenn arg nahe Null ist .
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 std::exp(arg)-1 if arg is close to zero.
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[Bearbeiten] Parameter

arg -
Floating-Point-Wert
Original:
floating point value
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[Bearbeiten] Rückgabewert

earg
-1

Wenn das Ergebnis zu groß für den zugrunde liegenden Typ, tritt Bereich Fehler-und HUGE_VAL zurückgegeben .
Original:
If the result is too large for the underlying type, range error occurs and HUGE_VAL is returned.
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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]
(C++11)
natürlichen Logarithmus (zur Basis e) von 1 plus die angegebene Anzahl
Original:
natural logarithm (to base e) of 1 plus the given number
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(Funktion) [edit]
(C++11)
Renditen 2 an die angegebene Leistung (2x) angehoben
Original:
returns 2 raised to the given power (2x)
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(Funktion) [edit]