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frexp

提供: cppreference.com
< c‎ | numeric‎ | math

 
 
 
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(C99)
remquo(C99)
fma(C99)
fmax(C99)
fmin(C99)
fdim(C99)
nan
nanf
nanl
(C99)
(C99)
(C99)
指数関数
Original:
Exponential functions
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exp
exp2(C99)
expm1(C99)
log
log10
log1p(C99)
log2(C99)
電源機能
Original:
Power functions
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sqrt
cbrt(C99)
hypot(C99)
pow
三角関数や双曲線関数
Original:
Trigonometric and hyperbolic functions
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sinh
cosh
tanh
asinh(C99)
acosh(C99)
atanh(C99)
エラーおよびガンマ関数
Original:
Error and gamma functions
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erf(C99)
erfc(C99)
lgamma(C99)
tgamma(C99)
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
(C99)
(C99)
(C99)
trunc(C99)
nearbyint(C99)
rint
lrint
llrint
(C99)
(C99)
(C99)
点操作関数に浮かぶ
Original:
Floating point manipulation functions
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ldexp
scalbn
scalbln
(C99)
(C99)
ilogb(C99)
logb(C99)
frexp
modf
nextafter
nexttoward
(C99)
(C99)
copysign(C99)
分類
Original:
Classification
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fpclassify(C99)
isfinite(C99)
isinf(C99)
isnan(C99)
isnormal(C99)
signbit(C99)
マクロ定数
Original:
Macro constants
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Defined in header <math.h>
float       frexpf( float arg, int* exp );
double      frexp( double arg, int* exp );
long double frexpl( long double arg, int* exp );
仮数部と指数部に指定された浮動小数点値は、分解し.
Original:
Decomposes given floating point value to significand and exponent.
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[編集] パラメータ

arg -
浮動小数点値
Original:
floating point value
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exp -
に指数を格納するための整数値へのポインタ
Original:
pointer to integer value to store the exponent to
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[編集] 値を返します

[0.5; 1)の範囲内で指定された浮動小数点数の仮数。指数はexpが指す整数値に入れられ.
Original:
Significand of the given floating point number in the range of [0.5; 1). The exponent is put into integer value pointed to by exp.
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[編集] も参照してください

累乗し2によって数を乗算します
Original:
multiplies a number by 2 raised to a power
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(関数) [edit]
(C99)
数値の指数を抽出します
Original:
extracts exponent of the number
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(関数) [edit]
(C99)
数値の指数を抽出します
Original:
extracts exponent of the number
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(関数) [edit]
数値は、整数部分と小数部分に分解する
Original:
decomposes a number into integer and fractional parts
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(関数) [edit]