Name

tan, tanf, tanl — tangent function

Synopsis

#include <math.h>
double tan( double   x);
float tanf( float   x);
long double tanl( long double   x);
[Note] Note

Link with −lm.

DESCRIPTION

The tan() function returns the tangent of x, where x is given in radians.

CONFORMING TO

SVr4, 4.3BSD, C89. The float and long double variants are C99 requirements.

SEE ALSO

acos(3), asin(3), atan(3), atan2(3), cos(3), ctan(3), sin(3)

COLOPHON

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