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double exp2( double n );
 ( C++11)
float exp2( float n );
 ( C++11)
long double exp2( long double n );
 ( C++11)
double exp2( Integral n );
 ( C++11)
2, n
:
Computes 2 raised to the given power n
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n
:
floating point value
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2, n (.. 2n)
:
2 raised to the n (i.e. 2n)
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, HUGE_VAL .
:
If the result is too large for the underlying type, range error occurs and HUGE_VAL is returned.
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(C++11)(C++11)
 e (\({\small e^x}\)ex)
() []
(C++11)(C++11)(C++11)
 2 (\({\small \log_{2}{x} }\)log2(x))
() []
(C++11)(C++11)
 ( e) (\({\small \ln{x} }\)ln(x))
() []
(C++11)(C++11)
 (\(\small{x^y}\)xy)
() []
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