Using quil.core/ellipse to draw an 8 pattern in clojure -

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i want draw sketch 8 pattern. know how draw circles in counterclockwise , clockwise directions. not know how combine them. 

(defn draw-state [state]    (let [x (* 150 (quil.core/cos angle))          y (* 150 (quil.core/sin angle))]       (quil.core/ellipse x y 100 100)       (quil.core/ellipse y x 100 100)))

this function draw 2 circles in opposite directions. how draw sketch 8 pattern?

a polar equation 8-type of curve =

r^2 = cos[2t] (sec[t])^4

where r = radius, t = angle

you start this.


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