Moving 2D Curves Plotting

/* Moving plot of Function is basically a 3 dimensional plot
in which a 2D plot is move with third independent variable.
so the function is y=f(x,t)
here the x is horizontal independent variable and t is time.
The 3-D curve is display in this program as 2D cross section of
original curve.

/*
Function Plotting
Function is a relation in which every element in Range is essentially related to Domain.
*/

// Drawing Code Goes from here

#include<iostream.h>
#include<math.h>
#include<conio.h>
#include<graphics.h>

#define pi 3.141592


void clear();   //Prototype of clear screen function


void main()
{
 int driver=DETECT, mode;
 double x=0,y=0;
 double scl=10,acc=.01,tacc=.1;
 int ox=320,oy=240;
 int posx=0,posy=0;
 initgraph(&driver,&mode,"Panakj");
 double dposx,dposy;
 dposx=0;
 dposy=0;
 tacc=.1;   //time sampling rate
 acc=.1;    //Horizontal sampling rate
 scl=10;    //Zoom of curve
 y=acc; for(double t=-2*pi;t<=2*pi;t+=tacc)
 {
  clear();
  dposx=0;
  dposy=oy;
  for (x=-32;x<=32;x+=acc)
  {
   y=10*sin(x*t*t);    //Our Function Goes here
                       //Change the function for plotting
   posx=ox+scl*x;
   posy=oy-scl*y;
         // putpixel(posx,posy,WHITE);
   setcolor(WHITE);line(dposx,dposy,posx,posy);
   dposx=posx;
   dposy=posy;
  }
 }
 cout<<"Pushpkant";
 getch();
 closegraph();
}
void clear()
{
 setfillstyle(0,2);
 bar(0,0,640,480);
}