wvogel00 https://blog.hatena.ne.jp/wvogel00/ wvogel日記 https://wvogel00.hatenadiary.org/ Haskell (?) :: (Ord a,Num a) => (a,a) -> Bool (?) (x,y) = 1 > x^2 + y^2 pi' :: Fractional a => a pi' = 4.0*fromIntegral (length $ filter (?) dots) / fromIntegral (length dots) dots :: (Enum a,Fractional a) => [(a,a)] dots = [(x,y) | x <- [0.01,0.02..1.0] , y <- [0.01,0.02..1.0]] Monte Carlo法で円周率を計算。 ただ、桁落ちが… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fwvogel00.hatenadiary.org%2Fentry%2F20110920%2F1316499664" title="Monte Carlo - wvogel日記" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2011-09-20 15:21:04 rich https://wvogel00.hatenadiary.org/entry/20110920/1316499664 1.0 100%