std::tan

 

C++

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Common mathematical functions

Functions
Basic operations
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)
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erf (C++11) erfc (C++11)	lgamma (C++11) tgamma (C++11)
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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)
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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)
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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 constants
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       tan( float arg );
double      tan( double arg );
long double tan( long double arg );
double      tan( Integral arg );		(since C++11)

Computes tangent of arg

Parameters

arg

-

floating point value representing angle in radians

Return value

tangent of arg.

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

See also

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