/* compute sin(theta), theta is in degrees */

#include <iostream>    // required for using cin, cout
#include <cmath>       // required for using math functions

using namespace std;

const double PI = acos(-1.0);

int main( )
{
  double angle_deg, angle_rad, value;

  cout << "Enter the angle theta in degrees:";
  cin >> angle_deg;   // input the angle in degrees

  angle_rad = angle_deg * (PI/180);    //change the angle in degrees to in radian

  value = sin(angle_rad);  // compute sin(theta)

  cout << "sin(" << angle_deg << ")=" << value << endl;   // output the result

  return 0;

}