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cos

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< c‎ | numeric‎ | math
Revision as of 15:28, 1 July 2013 by P12bot (Talk | contribs)

 
 
 
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Macro constants
 
Defined in header <math.h>
float       cosf( float arg );
(since C99)
double      cos( double arg );
long double cosl( long double arg );
(since C99)

Computes cosine of arg

Parameters

arg - floating point value representing angle in radians

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.

See also

(C99)(C99)
computes sine (sin(x))
(function) [edit]
(C99)(C99)
computes tangent (tan(x))
(function) [edit]
(C99)(C99)
computes arc cosine (arccos(x))
(function) [edit]