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std::fdim

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< cpp‎ | numeric‎ | math

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C++
 
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
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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
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Functions
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基本操作
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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
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Exponential functions
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exp
exp2(C++11)
expm1(C++11)
log
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log2(C++11)
電源機能
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Power functions
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sqrt
cbrt(C++11)
hypot(C++11)
pow
三角関数や双曲線関数
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Trigonometric and hyperbolic functions
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sinh
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tanh
asinh(C++11)
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エラーおよびガンマ関数
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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
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Nearest integer floating point operations
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ceil
floor
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(C++11)
(C++11)
trunc(C++11)
nearbyint(C++11)
rint
lrint
llrint		(C++11)
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点操作関数に浮かぶ
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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
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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
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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>
float       fdim( float x, float y );
 (1) (C++11およびそれ以降)
double      fdim( double x, double y );
 (2) (C++11およびそれ以降)
long double fdim( long double x, long double y );
 (3) (C++11およびそれ以降)
Promoted    fdim( Arithmetic x, Arithmetic y );
 (4) (C++11およびそれ以降)
xyとの間に正の差を返します。.
Original:
Returns the positive difference between x and y.
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これはfmax (x - y, 0)として実装される可能性があるので、x ≤ y場合、結果は常に0に等しいですが、それ以外の場合はx - yです.
Original:
This could be implemented as fmax (x - y, 0), so if x ≤ y, the result is always equals to 0, otherwise it is x - y.
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4)
いずれかの引数が整数型を持つ場合、それはdoubleにキャストされます。他の引数はlong doubleあれば、戻り値の型はlong double、それ以外の場合はdoubleです.
Original:
If any argument has integral type, it is cast to double. If any other argument is long double, then the return type is long double, otherwise it is double.
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[編集] パラメータ

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

正の差分値.
Original:
The positive difference value.
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[編集] 参照




(C++11)
整数値（|x|）の絶対値を計算します
Original:
computes absolute value of an integral value (|x|)
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(関数) [edit]
(C++11)
2つの浮動小数点値の大きい方
Original:
larger of two floating point values
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(関数) [edit]
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