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copied!<h2>Haskell (162 characters)</h2> <p>A (fairly) straight forward ASCII art version:</p> <pre><code>c(x,y)|x*x+y*y<4.0='x' |True='.' i v w=c(iterate s(v,w)!!1000)where s(x,y)=(x*x-y*y+v,2*x*y+w) main=mapM_ putStrLn[[i x y|x<-[-1.5,-1.45..0.5]]|y<-[1,0.9.. -1]] </code></pre> <h3>Output:</h3> <pre> $ ./a.out ......................................... ......................................... ..........................xxxx........... ..........................xxxx........... ....................x..xxxxxxxxxx........ ....................xxxxxxxxxxxxxxxxx.... ..................xxxxxxxxxxxxxxxxxxx.... .................xxxxxxxxxxxxxxxxxxxxx... .......xxxxxxx..xxxxxxxxxxxxxxxxxxxxxx... ......xxxxxxxxx.xxxxxxxxxxxxxxxxxxxxxx... ..xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx..... ......xxxxxxxxx.xxxxxxxxxxxxxxxxxxxxxx... .......xxxxxxx..xxxxxxxxxxxxxxxxxxxxxx... .................xxxxxxxxxxxxxxxxxxxxx... ..................xxxxxxxxxxxxxxxxxxx.... ....................xxxxxxxxxxxxxxxxx.... ....................x..xxxxxxxxxx........ ..........................xxxx........... ..........................xxxx........... ......................................... ......................................... </pre> <h3>More readable version:</h3> <pre><code>outchar (x,y) | x*x + y*y < 4.0 = 'x' | otherwise = '.' calc v w = outchar (iterate step (v,w) !! 1000) where step (x,y) = (x*x - y*y + v, 2*x*y + w) main = mapM_ putStrLn [[calc x y | x <- [-1.5, -1.45 .. 0.5]] | y <- [1, 0.9 .. -1]] </code></pre>

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