```
import turtle
import math
turtleSize=1
turtle.speed(1)

turtleA=turtle.Turtle()
turtleA.shape("circle")
turtleA.shapesize(turtleSize)

screenSizeX=180
screenSizeY=3
llx=0
turtle.setworldcoordinates(llx,-screenSizeY,screenSizeX,screenSizeY)

for i in range(180):
    turtleA.goto(i,(2*math.sin(0.1*i)))
    screenSizeX=screenSizeX+1
    llx=llx+1
    turtle.setworldcoordinates(llx,-screenSizeY,screenSizeX,screenSizeY)

```

What I am trying to do it create a turtle making a sine function, however the actual turtle will appear as though it remains in place, because every time the turtle moves, the world coordinates will move slightly with it. Think a snake slithering on a TV but its head remains in the center of the screen and the camera is just moving along with it. Whenever I try to set the world coordinate after I've moved the turtle, everything the turtle drew disappears. I realize that this may not be the best solution for the the challenge, however I can't think of one better.