Common mathematical functions

 

C++

Linguaggio

Concetti

Libreria di Utilità

Stringhe

Contenitori

Algoritmi

Iteratori

Libreria matematca

Input/output

Localizzazione

Espressioni regolari (C++11)

Operazioni atomicche (C++11)

Multithreading (C++11)

 

Numeri libreria

Comuni funzioni matematiche

Virgola mobile ambiente

I numeri complessi

Array numerici

Pseudo-casuale generazione

In fase di compilazione aritmetica razionale (C++11)

Generici operazioni numeriche 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

 

Comuni funzioni matematiche

Funzioni Original: Functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
Operazioni di base 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.
abs(int) labs llabs imaxabs (C++11) abs(float) fabs div ldiv lldiv imaxdiv (C++11) fmod	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)
Funzioni esponenziali 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)
Funzioni di risparmio energia 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
Funzioni trigonometriche e iperboliche 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.
sin cos tan asin acos atan atan2	sinh cosh tanh asinh (C++11) acosh (C++11) atanh (C++11)

Errore e gamma funzioni 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)
Più vicini operazioni di interi in virgola mobile 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 funzioni di manipolazione di punti 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)
Classificazione / confronto 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)
Macro costanti 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.
HUGE_VALF HUGE_VAL HUGE_VALL (C++11) (C++11) INFINITY (C++11) NAN (C++11) math_errhandling MATH_ERRNO MATH_ERREXCEPT (C++11)	FP_NORMAL FP_SUBNORMAL FP_ZERO FP_INFINITE FP_NAN (C++11) (C++11) (C++11) (C++11) (C++11)

 

Funzioni

Defined in header <cmath>
Operazioni di base 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.
abs(int) labs llabs imaxabs (C++11)	calcola il valore assoluto di un valore integrale (|x|) Original: computes absolute value of an integral value (|x|) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
abs(float) fabs	valore assoluto di un valore in virgola mobile (|x|) Original: absolute value of a floating point value (|x|) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
div ldiv lldiv imaxdiv (C++11)	il quoziente e il resto della divisione intera Original: the quotient and remainder of integer division The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
fmod	resto dell'operazione divisione floating point Original: remainder of the floating point division operation The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
remainder (C++11)	firmato resto della divisione 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. (funzione)
remquo (C++11)	firmato restante nonché gli ultimi tre bit della operazione di divisione 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. (funzione)
fma (C++11)	fusa moltiplicare-add operazione Original: fused multiply-add operation The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
fmax (C++11)	più elevato tra due valori in virgola mobile Original: larger of two 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. (funzione)
fmin (C++11)	più piccolo dei due valori in virgola mobile Original: smaller of two 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. (funzione)
fdim (C++11)	differenza positiva di due valori in virgola mobile (max(0, x-y)) Original: positive difference of two floating point values (max(0, x-y)) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
nan nanf nanl (C++11) (C++11) (C++11)	not-a-number (NaN) Original: not-a-number (NaN) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
Funzioni esponenziali 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	ritorna e elevato alla potenza data (ex) Original: returns e raised to the given power (ex) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
exp2 (C++11)	torna 2 elevato alla potenza data (2x) Original: returns 2 raised to the given power (2x) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
expm1 (C++11)	ritorna e elevato alla potenza data, meno uno (ex-1) Original: returns e raised to the given power, minus one (ex-1) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
log	calcola naturale (base e) logaritmo (alla base e) (ln(x)) Original: computes natural (base e) logarithm (to base e) (ln(x)) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
log10	calcola comune (base 10) logaritmo (log10(x)) Original: computes common (base 10) logarithm (log10(x)) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
log1p (C++11)	logaritmo naturale (a base e) di 1 più il numero dato Original: natural logarithm (to base e) of 1 plus the given number The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
log2 (C++11)	base 2 logaritmo del numero dato Original: base 2 logarithm of the given number The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
Funzioni di risparmio energia 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	calcola la radice quadrata (√x) Original: computes square root (√x) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
cbrt (C++11)	calcola radice cubica (3√x) Original: computes cubic root (3√x) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
hypot (C++11)	calcola radice quadrata della somma dei quadrati di due numeri dati (√x2 +y2 ) Original: computes square root of the sum of the squares of two given numbers (√x2 +y2 ) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
pow	solleva un numero alla potenza data (xy) Original: raises a number to the given power (xy) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
Funzioni trigonometriche Original: Trigonometric functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
sin	calcola sine (sin(x)) Original: computes sine (sin(x)) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
cos	calcola coseno (cos(x)) Original: computes cosine (cos(x)) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
tan	calcola tangente (tan(x)) Original: computes tangent (tan(x)) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
asin	calcola arcoseno (arcsin(x)) Original: computes arc sine (arcsin(x)) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
acos	calcola l'arcocoseno (arccos(x)) Original: computes arc cosine (arccos(x)) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
atan	calcola arco tangente (arctan(x)) Original: computes arc tangent (arctan(x)) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
atan2	arco tangente, utilizzando le indicazioni per determinare quadranti Original: arc tangent, using signs to determine quadrants The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
Funzioni iperboliche Original: 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	calcola seno iperbolico (sh(x)) Original: computes hyperbolic sine (sh(x)) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
cosh	calcola il coseno iperbolico (ch(x)) Original: computes hyperbolic cosine (ch(x)) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
tanh	tangente iperbolica Original: hyperbolic tangent The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
asinh (C++11)	arcoseno iperbolico Original: hyperbolic arc sine The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
acosh (C++11)	arcocoseno iperbolico Original: hyperbolic arc cosine The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
atanh (C++11)	arco tangente iperbolica Original: hyperbolic arc tangent The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
Errore e gamma funzioni 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)	funzione di errore Original: error function The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
erfc (C++11)	errore funzione complementare Original: complementary error function The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
lgamma (C++11)	logaritmo naturale della funzione gamma Original: natural logarithm of the gamma function The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
tgamma (C++11)	funzione gamma Original: gamma function The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
Più vicini operazioni di interi in virgola mobile 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	intero più vicino non inferiore al valore dato Original: nearest integer not less than the given value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
floor	intero più vicino non superiore al valore dato Original: nearest integer not greater than the given value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
trunc (C++11)	intera più vicina non superiore in grandezza rispetto al valore dato Original: nearest integer not greater in magnitude than the given value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
round lround llround (C++11) (C++11) (C++11)	numero intero più vicino, l'arrotondamento a da zero in caso a metà strada Original: nearest integer, rounding away from zero in halfway cases The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
nearbyint (C++11)	numero intero più vicino utilizzando la modalità corrente di arrotondamento Original: nearest integer using current rounding mode The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
rint lrint llrint (C++11) (C++11) (C++11)	numero intero più vicino utilizzando la modalità corrente di arrotondamento ad eccezione se il risultato è diverso Original: nearest integer using current rounding mode with exception if the result differs The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
Floating funzioni di manipolazione di punti 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.
frexp	scompone un numero in significante e una potenza di 2 Original: decomposes a number into significand and a power of 2 The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
ldexp	moltiplica un numero per 2 elevato a una potenza Original: multiplies a number by 2 raised to a power The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
modf	scompone un numero in parti intere e frazionarie Original: decomposes a number into integer and fractional parts The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
scalbn scalbln (C++11) (C++11)	moltiplica un numero per FLT_RADIX elevato a una potenza Original: multiplies a number by FLT_RADIX raised to a power The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
ilogb (C++11)	estrae esponente del numero Original: extracts exponent of the number The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
logb (C++11)	estrae esponente del numero Original: extracts exponent of the number The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
nextafter nexttoward (C++11) (C++11)	prossimo valore rappresentabile in virgola mobile verso il valore dato Original: next representable floating point value towards the given value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
copysign (C++11)	copia il segno di un valore in virgola mobile Original: copies the sign of a floating point value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
Classificazione e confronto Original: Classification and 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)	categorizza il valore dato in virgola mobile Original: categorizes the given floating point value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
isfinite (C++11)	controlla se il numero dato ha un valore finito Original: checks if the given number has finite value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
isinf (C++11)	controlla se il numero dato è infinito Original: checks if the given number is infinite The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
isnan (C++11)	controlla se il numero dato è NaN Original: checks if the given number is NaN The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
isnormal (C++11)	controlla se il numero dato è normale Original: checks if the given number is normal The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
signbit (C++11)	controlla se il numero dato è negativo Original: checks if the given number is negative The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
isgreater (C++11)	controlla se il primo virgola mobile argomento è maggiore del secondo Original: checks if the first floating-point argument is greater than the second The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
isgreaterequal (C++11)	controlla se il primo a virgola mobile argomento è maggiore o uguale al secondo Original: checks if the first floating-point argument is greater or equal than the second The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
isless (C++11)	controlla se il primo a virgola mobile argomento è minore del secondo Original: checks if the first floating-point argument is less than the second The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
islessequal (C++11)	controlla se il primo a virgola mobile argomento è minore o uguale al secondo Original: checks if the first floating-point argument is less or equal than the second The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
islessgreater (C++11)	controlla se il primo argomento in virgola mobile è inferiore o maggiore del secondo Original: checks if the first floating-point argument is less or greater than the second The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
isunordered (C++11)	controlla se due valori in virgola mobile non sono ordinati Original: checks if two floating-point values are unordered The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)

Tipi

Defined in header <cmath>
float_t	più efficiente tipo a virgola mobile di larghezza almeno pari a float Original: most efficient floating-point type at least as wide as float The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
double_t	più efficiente tipo a virgola mobile di larghezza almeno pari a double Original: most efficient floating-point type at least as wide as double The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
Defined in header <cstdlib>
div_t	tipo di struttura, di ritorno della funzione std::div Original: structure type, return of the std::div function The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
ldiv_t	tipo di struttura, di ritorno della funzione std::ldiv Original: structure type, return of the std::ldiv function The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
lldiv_t	tipo di struttura, di ritorno della funzione std::lldiv Original: structure type, return of the std::lldiv function The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
Defined in header <cinttypes>
imaxdiv_t	tipo di struttura, di ritorno della funzione std::imaxdiv Original: structure type, return of the std::imaxdiv function The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Macro costanti

Defined in header <cmath>
HUGE_VALF HUGE_VAL HUGE_VALL (C++11) (C++11)	indica il valore di overflow per float, double e long double rispettivamente Original: indicates the overflow value for float, double and long double respectively The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (macro costante)
INFINITY (C++11)	restituisce l'infinito positivo o al valore garantito a traboccare un float Original: evaluates to positive infinity or the value guaranteed to overflow a float The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (macro costante)
NAN (C++11)	restituisce un NaN tranquilla di float tipo Original: evaluates to a quiet NaN of type float The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (macro costante)
math_errhandling MATH_ERRNO MATH_ERREXCEPT (C++11) (C++11) (C++11)	definisce il meccanismo di gestione degli errori utilizzato dai comuni funzioni matematiche Original: defines the error handling mechanism used by the common mathematical functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (macro costante)
Classificazione Original: Classification 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_INFINITY FP_NAN (C++11) (C++11) (C++11) (C++11) (C++11)	indica un virgola mobile categoria Original: indicates a floating-point category The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (macro costante)
Defined in header <cfloat>