title: what does the turtle.setworldcoordinates function do?
body: <p>Beginner's Python book tend to grow more steep towards the middle pages and hardly explain anything at all. Therefore, I'm having a hard time figuiring out what the turtle.setworldcoordinates function does after being disappointed by my inability to do so by reading the documentation which was very unhelpful and not being able to empirically deduce anything with some ideas of the documentation. Could anyone please point out what this function does in turtle graphics?</p>