Funny graphs

First, put your calculator in polar mode:

Then go to the graph menu and enter a formula:

And this is what you will see:

n	r = sin (θ*n)	r = sin (θ/n)	r = ±sin (5θ) θStep = π/n	r = ±sin (7θ) θStep = π/n
1
2
3
4
5
6
7
8
9
7/3
8/3
10/3
11/3
1.5
2.5
3.5
4.5
5.5