NAME

sin — sine function

SYNOPSIS

#include <math.h>

double
sin(double x);

long double
sinl(long double x);

float
sinf(float x);

DESCRIPTION

The sin() function computes the sine of x (measured in radians).

SPECIAL VALUES

sin(±0) returns ±0.

sin(±infinity) returns a NaN and raises the "invalid" floating-point exception.

VECTOR OPERATIONS

If you need to apply the sin() 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 vsinf(vFloat x);
vFloat vsincosf(vFloat x, vFloat *c);
void vvsinf(float *y, const float *x, const int *n);
void vvsin(double *y, const double *x, const int *n);
void vvsincosf(float *s, float *c, const float *x, const int *n);
void vvsincos(double *s, double *c, const double *x, const int *n);

SEE ALSO

acos(3), asin(3), atan(3), atan2(3), cos(3), cosh(3), sinh(3), tan(3), tanh(3), math(3)

STANDARDS

The sin() function conforms to ISO/IEC 9899:2011.