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  <author_name>fornext1119</author_name>
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  <blog_title>ONLY DO WHAT ONLY YOU CAN DO</blog_title>
  <blog_url>https://fornext1119.hatenablog.com/</blog_url>
  <categories>
    <anon>Clojure</anon>
    <anon>数値計算</anon>
    <anon>連分数展開</anon>
    <anon>π</anon>
  </categories>
  <description>πの求め方 こう書いてもおｋ ;自作の逆正接関数 (defn myAtan [x x2 n t] (def m (quot n 2)) (def denom (/ (* (* m m) x2) (+ n t))) (def nume (- n 2)) (if (&lt;= nume 1) (/ x (+ 1 denom)) (myAtan x x2 nume denom))) (doseq [degree (map #(- (* % 15) 45) (range 0 7))] (do (def radian (/ (* degree (. Math PI)) 180.0)) (def x2 (* r…</description>
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  <provider_name>Hatena Blog</provider_name>
  <provider_url>https://hatena.blog</provider_url>
  <published>2013-11-30 00:00:00</published>
  <title> Clojure で 連分数展開を使って π を求める</title>
  <type>rich</type>
  <url>https://fornext1119.hatenablog.com/entry/20131130/p3</url>
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