(defn dart [x] [y]
(def throws 10)
(def hits 0.0)
(def Rsquared (+ (* (- 0.5 x) (- 0.5 x)) (* (- 0.5 y) (- 0.5 y)) ) )
(println Rsquared)
(if (< Rsquared 0.25) (def hits (+ hits 1)))
(def pi (* 4 (/ hits throws)) )
(println pi)
)