std::cos

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Defined in header `<cmath>`

float cos( float arg );

double cos( double arg );

long double cos( long double arg );

double cos( Integral arg );		(since C++11)

Computes cosine of arg

arg

-

floating point value representing angle in radians

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

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


sin	computes sine ( $sin(x)$ ) (function)

tan	computes tangent ( $tan(x)$ ) (function)

acos	computes arc cosine ( $arccos(x)$ ) (function)

cos(std::complex)	computes cosine of a complex number ( $cos(z)$ ) (function template)

cos(std::valarray)	applies the function std::cos to each element of valarray (function template)