Desmos version:
I've just checked, and Desmos does allow polar plots. If you just use r and theta (use the Greek letter not the word "theta") Desmos automatically assumes you want a polar plot.
Doesn't Desmos allow polar plots? (Just asking - I haven't checked).
If you calculate x = r*cos(theta) and y = r* sin(theta), you should get values of x and y that plot to give the curves I've shown.
I've graphed polar plots Melody. r is the radius and theta is the angle. This is usually what is wanted when an equation is specified using r and theta.
Or this one!
As follows:
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Hmm! What if n were 27 or 28 or ...?
I should have added this graph:
Depends what is meant by a "complete" graph, I guess:
+33667 
