#include <GL/glut.h>
#include <math.h>

int i;
float y;

void display()
{
  glClear(GL_COLOR_BUFFER_BIT);
  glBegin(GL_LINE_STRIP);
  for(i=0;i<=10;i++)
  {
    y=sin((i-5)/5.0*3.14);
    glVertex2f((i-5)/5.0, y/3.14);
  }
  glEnd();
  glFlush();
}


int main(int argc, char *argv[])
{
  glutInit(&argc,argv);
  glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
  glutCreateWindow("C GLUT program");
  glutDisplayFunc(display);
  glutMainLoop();
  return 0;
}