Function Prototype of sin()
double sin(double x)
The sin() function returns the sine of an argument (angle in radians).
[Mathematics] sinx = sin(x) [In C Programming]
It is defined in math.h header file.
The return value of sin() lies between 1 and -1.
Example: C sin() function
#include <stdio.h>
#include <math.h>
int main()
{
double x;
double result;
x = 2.3;
result = sin(x);
printf("sin(%.2lf) = %.2lf\n", x, result);
x = -2.3;
result = sin(x);
printf("sin(%.2lf) = %.2lf\n", x, result);
x = 0;
result = sin(x);
printf("sin(%.2lf) = %.2lf\n", x, result);
return 0;
}
Output
sin(2.30) = 0.75 sin(-2.30) = -0.75 sin(0.00) = 0.00