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std::exp2

提供: cppreference.com
< cpp‎ | numeric‎ | math

 
 
ニューメリックスライブラリ
一般的な数学関数
浮動小数点環境
複素数
数値配列
擬似乱数生成
コンパイル時有理数演算 (C++11)
汎用の数値演算
Original:
Generic numeric operations
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iota(C++11)
accumulate
inner_product
adjacent_difference
partial_sum
 
一般的な数学関数
機能します
Original:
Functions
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基本操作
Original:
Basic operations
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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)
指数関数
Original:
Exponential functions
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exp
exp2(C++11)
expm1(C++11)
log
log10
log1p(C++11)
log2(C++11)
電源機能
Original:
Power functions
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sqrt
cbrt(C++11)
hypot(C++11)
pow
三角関数や双曲線関数
Original:
Trigonometric and hyperbolic functions
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sinh
cosh
tanh
asinh(C++11)
acosh(C++11)
atanh(C++11)
エラーおよびガンマ関数
Original:
Error and gamma functions
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erf(C++11)
erfc(C++11)
lgamma(C++11)
tgamma(C++11)
最も近い整数の浮動小数点演算
Original:
Nearest integer floating point operations
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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)
点操作関数に浮かぶ
Original:
Floating point manipulation functions
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ldexp
scalbn
scalbln
(C++11)
(C++11)
ilogb(C++11)
logb(C++11)
frexp
modf
nextafter
nexttoward
(C++11)
(C++11)
copysign(C++11)
分類/比較
Original:
Classification/Comparison
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fpclassify(C++11)
isfinite(C++11)
isinf(C++11)
isnan(C++11)
isnormal(C++11)
signbit(C++11)
isgreater(C++11)
isgreaterequal(C++11)
isless(C++11)
islessequal(C++11)
islessgreater(C++11)
isunordered(C++11)
マクロ定数
Original:
Macro constants
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FP_NORMAL
FP_SUBNORMAL
FP_ZERO
FP_INFINITE
FP_NAN
(C++11)
(C++11)
(C++11)
(C++11)
(C++11)
 
Defined in header <cmath>
double      exp2( double n );
(C++11およびそれ以降)
float       exp2( float n );
(C++11およびそれ以降)
long double exp2( long double n );
(C++11およびそれ以降)
double      exp2( Integral n );
(C++11およびそれ以降)
計算し2は、与えられた電力nに引き上げ
Original:
Computes 2 raised to the given power n
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[編集] パラメータ

n -
浮動小数点値
Original:
floating point value
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[編集] 値を返します

2に引き上げn(すなわち2n
Original:
2 raised to the n (i.e. 2n)
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結果は、基になる型には大きすぎる場合、範囲エラーが発生し、HUGE_VALが返されます.
Original:
If the result is too large for the underlying type, range error occurs and HUGE_VAL is returned.
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[編集] も参照してください

戻り eを与えられた電力(ex)に引き上げた
Original:
returns e raised to the given power (ex)
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(関数) [edit]
(C++11)
与えられた数の2を底とした対数
Original:
base 2 logarithm of the given number
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(関数) [edit]
計算する自然(底 E)対数(底へ E)(ln(x)
Original:
computes natural (base e) logarithm (to base e) (ln(x))
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(関数) [edit]
与えられた電力(xy)に番号を発生させます
Original:
raises a number to the given power (xy)
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(関数) [edit]