std::cos

 

C++

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Espressioni regolari (C++11)

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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)
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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 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)

 

Defined in header <cmath>
float       cos( float arg );
double      cos( double arg );
long double cos( long double arg );
double      cos( Integral arg );		(dal C++11)

Calcola coseno di arg

Original:

Computes cosine of arg

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Parametri

arg

-

valore del punto mobile che rappresenta l'angolo in radianti Original: floating point value representing angle in radians The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Valore di ritorno

coseno di arg nel [-1.0 ; 1.0] gamma.

Original:

cosine of arg in the range [-1.0 ; 1.0].

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Errore di dominio si verifica se arg è infinito. NAN viene restituito in questo caso.

Original:

Domain error occurs if arg is infinite. NAN is returned in that case.

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Vedi anche

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)
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)
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)
cos(std::complex)	calcola coseno di un numero complesso (cos(z)) Original: computes cosine of a complex number (cos(z)) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione di modello)
cos(std::valarray)	applica la std::cos funzione a ogni elemento di valarray Original: applies the function std::cos to each element of valarray The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione di modello)