double sin ( double x );
float sin ( float x );
long double sin ( long double x ); |
<cmath> |
Compute sine
Returns the sine of an angle of x radians.
Parameters
- x
- Floating point value representing an angle expressed in radians.
Return Value
Sine of
x.
Portability
In C, only the
double version of this function exists with this name.
Example
/* sin example */
#include <stdio.h>
#include <math.h>
#define PI 3.14159265
int main ()
{
double param, result;
param = 30.0;
result = sin (param*PI/180);
printf ("The sine of %lf degrees is %lf.\n", param, result );
return 0;
} |
Output:
The sine of 30.000000 degrees is 0.500000.
|
See also
| cos | Compute cosine (function) |
| tan | Compute tangent (function) |
