std::exp2 – cppreference.com

std::exp2

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Basic operations
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FP_NORMAL
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<tbody> </tbody>
definiert in Header <cmath>
double exp2( double n );
 (seit C++11)
float exp2( float n );
 (seit C++11)
long double exp2( long double n );
 (seit C++11)
double exp2( Integral n );
 (seit C++11)
Berechnet 2 hoch vorgegebenen Strom n
Original:
Computes 2 raised to the given power n
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Parameter

n -
Floating-Point-Wert
Original:
floating point value
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Rückgabewert

2 hoch die n (d.h. 2n)
Original:
2 raised to the n (i.e. 2n)
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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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Siehe auch