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std::cos

From cppreference.com
< cpp‎ | numeric‎ | math
 
 
 
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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.

[edit] Parameters

arg - value representing angle in radians, of a floating-point or Integral type

[edit] Return value

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

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

[edit] See also

computes sine (sin(x))
(function) [edit]
computes tangent (tan(x))
(function) [edit]
computes arc cosine (arccos(x))
(function) [edit]
computes cosine of a complex number (cos(z))
(function template) [edit]
applies the function std::cos to each element of valarray
(function template) [edit]