Namespace
Varianti

copysign

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< c‎ | numeric‎ | math

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C
 
Numeri
 
Comuni funzioni matematiche
Funzioni
Original:
Functions
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Operazioni di base
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)
Funzioni esponenziali
Original:
Exponential functions
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exp
exp2(C99)
expm1(C99)
log
log10
log1p(C99)
log2(C99)
Funzioni di risparmio energia
Original:
Power functions
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sqrt
cbrt(C99)
hypot(C99)
pow
Funzioni trigonometriche e iperboliche
Original:
Trigonometric and hyperbolic functions
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sinh
cosh
tanh
asinh(C99)
acosh(C99)
atanh(C99)
Errore e gamma funzioni
Original:
Error and gamma functions
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erf(C99)
erfc(C99)
lgamma(C99)
tgamma(C99)
Più vicini operazioni di interi in virgola mobile
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)
Floating funzioni di manipolazione di punti
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)
Classificazione
Original:
Classification
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fpclassify(C99)
isfinite(C99)
isinf(C99)
isnan(C99)
isnormal(C99)
signbit(C99)
Macro costanti
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Macro constants
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Elemento definito nell'header <math.h>
float       copysignf( float x, float y );
double      copysign( double x, double y );
long double copysignl( long double x, long double y );
Compone un valore in virgola mobile con la grandezza del x e il segno di y.
Original:
Composes a floating point value with the magnitude of x and the sign of y.
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[modifica] Parametri

x, y -
valori in virgola mobile
Original:
floating point values
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[modifica] Valore di ritorno

Valore del punto di galleggiamento con la grandezza del x e il segno della y
Original:
Floating point value with the magnitude of x and the sign of y
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[modifica] Vedi anche
valore assoluto di un valore in virgola mobile (|x|)
Original:
absolute value of a floating point value (|x|)
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(funzione) [modifica]
(C99)
controlla se il numero dato è negativo
Original:
checks if the given number is negative
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(funzione) [modifica]
C++ documentation for copysign
Estratto da "https://it.cppreference.com/mwiki/index.php?title=c/numeric/math/copysign&oldid=24706"