Need help with a program on recursive which also includes TurtleWorld.

Question

I am referring the PDF from thinkpython. It had this code, of which I am not able to understand the flow. Any help will be highly appreciated.

def draw(t, length, n)
if n ==0
return
angle = 50
fd(t, length*n)
lt(t, angle)
draw(t, length*n-1)
rt(t, 2*angle)
draw(t, length, n-1)
lt(t, angle)
bk(t, length*n)

Once again, help would be really appreciated.

Answer 1

What is your question? Please elaborate

Answer 2

what I meant was within the function draw, I am unable to understand the flow of the code. Which step is getting executed when that is what I am unable to grasp.