### sin -- Calculate Sine

Format

>     #include <math.h>
>     double sin(double x);

Language Level: ANSI, POSIX, XPG4
sin calculates the sine of x, with x expressed in radians. If x is too large, a partial loss of significance in the result may occur.

Return Value
sin returns the value of the sine of x.

Example
This example computes y as the sine of pi/2.

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

    int main(void)
    {
       double pi, x, y;

       pi = 3.1415926535;
       x = pi/2;
       y = sin(x);

       printf("sin( %lf ) = %lf\n", x, y);
       return 0;

       /***************************************
          The output should be:

          sin( 1.570796 ) = 1.000000
       ***************************************/
    }

acos -- Calculate Arccosine
asin -- Calculate Arcsine
atan - atan2 -- Calculate Arctangent
cos -- Calculate Cosine
cosh -- Calculate Cosine
_fasin -- Calculate Arcsine
_fcossin -- Calculate Cosine and Sine
_fsin -- Calculate Sine
_fsincos -- Calculate Sine and Cosine
sinh -- Calculate Hyperbolic Sine
tan -- Calculate Tangent
tanh -- Calculate Hyperbolic Tangent
<math.h>