#include<stdio.h>
#include<conio.h>
#include<math.h>
#include<graphics.h>
main()
{float x0,xh,xk,x,y,mx,my;
int gt,gm,err;
gt=DETECT;
initgraph(&gt,&gm,"");
err= graphresult();
if(err!=0)
{clrscr();
puts("ERROR");
getch();
return 1;
}
printf(" Input x0,xh,xk");
scanf("%f %f %f", &x0,&xh,&xk);
mx=(getmaxx()/2)/xk;
my=(getmaxy()/2)/3;
cleardevice();
setbkcolor(14);
setcolor(2);
line(320, 0, 320, 480);
line(0, 240, 640, 240);
outtextxy(340, 230,"0");
outtextxy(340, 20,"y");
outtextxy(630, 230,"x");
setcolor (1);
for(x=x0;x<=xk;x+=xh)
 {y=(x*x+x)/(8+sqrt(x));
  if (fabs(x)<2)
  { y=y+pow(x,7);
  putpixel(floor(320+mx*x),floor(240-my*y),4);
  }
  else
  {y=y+sin(x);
  putpixel(floor(320+mx*x),floor(240-my*y),7);
  }
}
getch();
return 0;
}