sin, sinl

raw OCR

Calculates sine.

Defined in header <math.h>

Syntax

Real versions:                    Complex  version:
#include <math.h>                 #include <complex.h>
double sin(double x);             complex  sin(complex x);
long double sinldong double  x);

Portability

	DOS	UNIX	Windows	ANSI C	C++ only
sini	■		■
Real sin	■	■	■	■
Complex sin	■		■		■

Remarks

sin computes the sine of the input value. Angles are specified in radians.

sini is the long double version; it takes a long double argument and returns a long double result.

Error handling for these functions can be modified through the functions matherr and _matherrl.

Return value

sin and sinl return the sine of the input value.

The complex sine is defined by

sin(z) = (exp(/ * z) - exp(-/ * 2))/(2i)

Example

*include <stdio.h>
#include <math.h>

int main(void)

   double result, x
   result = sin(x);
   printfC'The sin{) of %lf is %lf\n", X, result);
   return 0;

Differences from modern implementations

Nothing recorded yet.

Modern references

These are search links, not yet checked by hand.

Stable link: /3.1/math.h/sin/ · short form /3.1/sin/