GNU/Linux |
CentOS 5.5 |
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tanf(3) |
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tan, tanf, tanl − tangent function
#include <math.h>
double
tan(double x);
float tanf(float x);
long double tanl(long double x);
Link with −lm.
The tan() function returns the tangent of x, where x is given in radians.
SVr4, 4.3BSD, C89. The float and long double variants are C99 requirements.
acos(3), asin(3), atan(3), atan2(3), cos(3), ctan(3), sin(3)
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tanf(3) | ![]() |