TAN(3) | Library Functions Manual | TAN(3) |
tan
— tangent
function
#include
<math.h>
double
tan
(double
x);
long double
tanl
(long
double x);
float
tanf
(float
x);
The
tan
()
function computes the tangent of x (measured in
radians).
tan
(±0)
returns ±0.
tan
(±infinity)
returns a NaN and raises the "invalid" floating-point
exception.
If you need to apply the tan
() function to
SIMD vectors or arrays, using the following functions provided by the
Accelerate.framework may give significantly better performance:
#include
<Accelerate/Accelerate.h>
vFloat
vtanf
(vFloat
x);
void
vvtanf
(float
*y, const float *x, const int
*n);
void
vvtan
(double
*y, const double *x, const int
*n);
acos(3), asin(3), atan(3), atan2(3), cos(3), cosh(3), sin(3), sinh(3), tanh(3), math(3)
The tan
() function conforms to ISO/IEC
9899:2011.
December 11, 2006 | macOS 14.6 |