Namensräume
Varianten
Aktionen

std::fma

Aus cppreference.com
< cpp‎ | numeric‎ | math

This page has been machine-translated from the English version of the wiki using Google Translate.

The translation may contain errors and awkward wording. Hover over text to see the original version. You can help to fix errors and improve the translation. For instructions click here.

Click here for the English version of this page

 
C++
 
Numerik-Bibliothek
Gemeinsame mathematischen Funktionen
Floating-Point-Umgebung
Komplexe Zahlen
Numerische Arrays
Pseudo-Zufallszahlen
Compile-time rationale Arithmetik (C++11)
Generische numerische Operationen
Original:
Generic numeric operations
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
iota(C++11)
accumulate
inner_product
adjacent_difference
partial_sum
 
Gemeinsame mathematischen Funktionen
Funktionen
Original:
Functions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Grundlegende Bedienung
Original:
Basic operations
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
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)
Exponentialfunktionen
Original:
Exponential functions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
exp
exp2(C++11)
expm1(C++11)
log
log10
log1p(C++11)
log2(C++11)
Power-Funktionen
Original:
Power functions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
sqrt
cbrt(C++11)
hypot(C++11)
pow
Trigonometrische und hyperbolische Funktionen
Original:
Trigonometric and hyperbolic functions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
sinh
cosh
tanh
asinh(C++11)
acosh(C++11)
atanh(C++11)
Fehler-und Gamma-Funktionen
Original:
Error and gamma functions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
erf(C++11)
erfc(C++11)
lgamma(C++11)
tgamma(C++11)
Nächste ganze Zahl Fließkomma-Operationen
Original:
Nearest integer floating point operations
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
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)
Floating-Point-Manipulation Funktionen
Original:
Floating point manipulation functions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
ldexp
scalbn
scalbln		(C++11)
(C++11)
ilogb(C++11)
logb(C++11)
frexp
modf
nextafter
nexttoward		(C++11)
(C++11)
copysign(C++11)
Klassifizierung / Vergleich
Original:
Classification/Comparison
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
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)
Makro Konstanten
Original:
Macro constants
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
FP_NORMAL
FP_SUBNORMAL
FP_ZERO
FP_INFINITE
FP_NAN		(C++11)
(C++11)
(C++11)
(C++11)
(C++11)
 
definiert in Header <cmath>
float       fma( float x, float y, float z );
 (1) (seit C++11)
double      fma( double x, double y, double z );
 (2) (seit C++11)
long double fma( long double x, long double y, long double z );
 (3) (seit C++11)
Promoted    fma( Arithmetic x, Arithmetic y, Arithmetic z );
 (4) (seit C++11)
#define FP_FAST_FMA  /* implementation-defined */
 (5) (seit C++11)
#define FP_FAST_FMAF /* implementation-defined */
 (6) (seit C++11)
#define FP_FAST_FMAL /* implementation-defined */
 (7) (seit C++11)
Die FMA Funktionen berechnen (x*y) + z, wie ein ternären Betrieb abgerundet, nach dem
Original:
The fma functions compute (x*y) + z, rounded as one ternary operation, according to the
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Rundungsmodus durch den Wert der dadurch FLT_ROUNDS .
Original:
rounding mode characterized by the value of FLT_ROUNDS.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
4)
Wenn ein Argument hat integralen Typ, wird es double gegossen. Wenn ein anderes Argument long double ist, dann ist der Rückgabetyp long double ist, sonst ist es double .
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.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
5-7)
Wenn die Makro-Konstanten FP_FAST_FMAF, FP_FAST_FMA oder FP_FAST_FMAL definiert sind, die Funktion std::fma wertet schneller als die Expression x*y+z für float, double und long double Argumente sind. Wenn definiert, diese Makros zu Integer 1 auszuwerten .
Original:
If the macro constants FP_FAST_FMAF, FP_FAST_FMA, or FP_FAST_FMAL are defined, the function std::fma evaluates faster than the expression x*y+z for float, double, and long double arguments, respectively. If defined, these macros evaluate to integer 1.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[Bearbeiten] Parameter

x, y, z -
Fließkommazahlen
Original:
floating point values
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[Bearbeiten] Rückgabewert

(x*y) + z, abgerundet, wie ein ternären Betrieb
Original:
(x*y) + z, rounded as one ternary operation
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[Bearbeiten] Siehe auch

(C++11)
unterzeichnet Rest der Teilungsoperation
Original:
signed remainder of the division operation
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(Funktion) [edit]
(C++11)
unterzeichnet Rest sowie die letzten drei Bits der Division
Original:
signed remainder as well as the three last bits of the division operation
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(Funktion) [edit]
Von „https://de.cppreference.com/mwiki/index.php?title=cpp/numeric/math/fma&oldid=29543“