Namespace
Varianti

Common mathematical functions

Da cppreference.com.
< cpp‎ | numeric


 
 
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
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iota(C++11)
accumulate
inner_product
adjacent_difference
partial_sum
 
Comuni funzioni matematiche
Funzioni
Original:
Functions
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Operazioni di base
Original:
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)
Funzioni esponenziali
Original:
Exponential functions
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exp
exp2(C++11)
expm1(C++11)
log
log10
log1p(C++11)
log2(C++11)
Funzioni di risparmio energia
Original:
Power functions
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sqrt
cbrt(C++11)
hypot(C++11)
pow
Funzioni trigonometriche e iperboliche
Original:
Trigonometric and hyperbolic functions
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sinh
cosh
tanh
asinh(C++11)
acosh(C++11)
atanh(C++11)
Errore e gamma funzioni
Original:
Error and gamma functions
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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
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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
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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)
Classificazione / confronto
Original:
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)
Macro costanti
Original:
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)
 

Indice

[modifica] Funzioni

Defined in header <cmath>
Operazioni di base
Original:
Basic operations
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calcola il valore assoluto di un valore integrale (|x|)
Original:
computes absolute value of an integral value (|x|)
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(funzione) [edit]
valore assoluto di un valore in virgola mobile (|x|)
Original:
absolute value of a floating point value (|x|)
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(funzione) [edit]
il quoziente e il resto della divisione intera
Original:
the quotient and remainder of integer division
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(funzione) [edit]
resto dell'operazione divisione floating point
Original:
remainder of the floating point division operation
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(funzione) [edit]
(C++11)
firmato resto della divisione
Original:
signed remainder of the division operation
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(funzione) [edit]
(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
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(funzione) [edit]
(C++11)
fusa moltiplicare-add operazione
Original:
fused multiply-add operation
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(funzione) [edit]
(C++11)
più elevato tra due valori in virgola mobile
Original:
larger of two floating point values
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(funzione) [edit]
(C++11)
più piccolo dei due valori in virgola mobile
Original:
smaller of two floating point values
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(funzione) [edit]
(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))
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(funzione) [edit]
(C++11)
(C++11)
(C++11)
not-a-number (NaN)
Original:
not-a-number (NaN)
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(funzione) [edit]
Funzioni esponenziali
Original:
Exponential functions
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ritorna e elevato alla potenza data (ex)
Original:
returns e raised to the given power (ex)
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(funzione) [edit]
(C++11)
torna 2 elevato alla potenza data (2x)
Original:
returns 2 raised to the given power (2x)
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(funzione) [edit]
(C++11)
ritorna e elevato alla potenza data, meno uno (ex-1)
Original:
returns e raised to the given power, minus one (ex-1)
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(funzione) [edit]
calcola naturale (base e) logaritmo (alla base e) (ln(x))
Original:
computes natural (base e) logarithm (to base e) (ln(x))
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(funzione) [edit]
calcola comune (base 10) logaritmo (log10(x))
Original:
computes common (base 10) logarithm (log10(x))
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(funzione) [edit]
(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
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(funzione) [edit]
(C++11)
base 2 logaritmo del numero dato
Original:
base 2 logarithm of the given number
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(funzione) [edit]
Funzioni di risparmio energia
Original:
Power functions
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calcola la radice quadrata (x)
Original:
computes square root (x)
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(funzione) [edit]
(C++11)
calcola radice cubica (3x)
Original:
computes cubic root (3x)
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(funzione) [edit]
(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
)
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(funzione) [edit]
solleva un numero alla potenza data (xy)
Original:
raises a number to the given power (xy)
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(funzione) [edit]
Funzioni trigonometriche
Original:
Trigonometric functions
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calcola sine (sin(x))
Original:
computes sine (sin(x))
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(funzione) [edit]
calcola coseno (cos(x))
Original:
computes cosine (cos(x))
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(funzione) [edit]
calcola tangente (tan(x))
Original:
computes tangent (tan(x))
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(funzione) [edit]
calcola arcoseno (arcsin(x))
Original:
computes arc sine (arcsin(x))
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(funzione) [edit]
calcola l'arcocoseno (arccos(x))
Original:
computes arc cosine (arccos(x))
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(funzione) [edit]
calcola arco tangente (arctan(x))
Original:
computes arc tangent (arctan(x))
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(funzione) [edit]
arco tangente, utilizzando le indicazioni per determinare quadranti
Original:
arc tangent, using signs to determine quadrants
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(funzione) [edit]
Funzioni iperboliche
Original:
Hyperbolic functions
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calcola seno iperbolico (sh(x))
Original:
computes hyperbolic sine (sh(x))
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(funzione) [edit]
calcola il coseno iperbolico (ch(x))
Original:
computes hyperbolic cosine (ch(x))
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(funzione) [edit]
tangente iperbolica
Original:
hyperbolic tangent
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(funzione) [edit]
(C++11)
arcoseno iperbolico
Original:
hyperbolic arc sine
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(funzione) [edit]
(C++11)
arcocoseno iperbolico
Original:
hyperbolic arc cosine
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(funzione) [edit]
(C++11)
arco tangente iperbolica
Original:
hyperbolic arc tangent
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(funzione) [edit]
Errore e gamma funzioni
Original:
Error and gamma functions
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(C++11)
funzione di errore
Original:
error function
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(funzione) [edit]
(C++11)
errore funzione complementare
Original:
complementary error function
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(funzione) [edit]
(C++11)
logaritmo naturale della funzione gamma
Original:
natural logarithm of the gamma function
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(funzione) [edit]
(C++11)
funzione gamma
Original:
gamma function
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(funzione) [edit]
Più vicini operazioni di interi in virgola mobile
Original:
Nearest integer floating point operations
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intero più vicino non inferiore al valore dato
Original:
nearest integer not less than the given value
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(funzione) [edit]
intero più vicino non superiore al valore dato
Original:
nearest integer not greater than the given value
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(funzione) [edit]
(C++11)
intera più vicina non superiore in grandezza rispetto al valore dato
Original:
nearest integer not greater in magnitude than the given value
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(funzione) [edit]
(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
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(funzione) [edit]
(C++11)
numero intero più vicino utilizzando la modalità corrente di arrotondamento
Original:
nearest integer using current rounding mode
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(funzione) [edit]
(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
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(funzione) [edit]
Floating funzioni di manipolazione di punti
Original:
Floating point manipulation functions
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scompone un numero in significante e una potenza di 2
Original:
decomposes a number into significand and a power of 2
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(funzione) [edit]
moltiplica un numero per 2 elevato a una potenza
Original:
multiplies a number by 2 raised to a power
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(funzione) [edit]
scompone un numero in parti intere e frazionarie
Original:
decomposes a number into integer and fractional parts
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(funzione) [edit]
(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
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(funzione) [edit]
(C++11)
estrae esponente del numero
Original:
extracts exponent of the number
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(funzione) [edit]
(C++11)
estrae esponente del numero
Original:
extracts exponent of the number
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(funzione) [edit]
(C++11)
(C++11)
prossimo valore rappresentabile in virgola mobile verso il valore dato
Original:
next representable floating point value towards the given value
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(funzione) [edit]
(C++11)
copia il segno di un valore in virgola mobile
Original:
copies the sign of a floating point value
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(funzione) [edit]
Classificazione e confronto
Original:
Classification and comparison
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categorizza il valore dato in virgola mobile
Original:
categorizes the given floating point value
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(funzione) [edit]
(C++11)
controlla se il numero dato ha un valore finito
Original:
checks if the given number has finite value
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(funzione) [edit]
(C++11)
controlla se il numero dato è infinito
Original:
checks if the given number is infinite
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(funzione) [edit]
(C++11)
controlla se il numero dato è NaN
Original:
checks if the given number is NaN
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(funzione) [edit]
(C++11)
controlla se il numero dato è normale
Original:
checks if the given number is normal
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(funzione) [edit]
(C++11)
controlla se il numero dato è negativo
Original:
checks if the given number is negative
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(funzione) [edit]
(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
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(funzione) [edit]
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
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(funzione) [edit]
(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
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(funzione) [edit]
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
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(funzione) [edit]
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
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(funzione) [edit]
controlla se due valori in virgola mobile non sono ordinati
Original:
checks if two floating-point values are unordered
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(funzione) [edit]

[modifica] 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
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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
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Defined in header <cstdlib>
div_t
tipo di struttura, di ritorno della funzione std::div
Original:
structure type, return of the std::div function
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ldiv_t
tipo di struttura, di ritorno della funzione std::ldiv
Original:
structure type, return of the std::ldiv function
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lldiv_t
tipo di struttura, di ritorno della funzione std::lldiv
Original:
structure type, return of the std::lldiv function
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Defined in header <cinttypes>
imaxdiv_t
tipo di struttura, di ritorno della funzione std::imaxdiv
Original:
structure type, return of the std::imaxdiv function
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[modifica] Macro costanti

Defined in header <cmath>
indica il valore di overflow per float, double e long double rispettivamente
Original:
indicates the overflow value for float, double and long double respectively
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(macro costante) [edit]
(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
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(macro costante)
(C++11)
restituisce un NaN tranquilla di float tipo
Original:
evaluates to a quiet NaN of type float
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(macro costante)
definisce il meccanismo di gestione degli errori utilizzato dai comuni funzioni matematiche
Original:
defines the error handling mechanism used by the common mathematical functions
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(macro costante) [edit]
Classificazione
Original:
Classification
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(C++11)
(C++11)
(C++11)
(C++11)
(C++11)
indica un virgola mobile categoria
Original:
indicates a floating-point category
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(macro costante) [edit]
Defined in header <cfloat>