28 lines
519 B
Ruby
28 lines
519 B
Ruby
def main
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maxIt = 13
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maxItJ = 10
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a1 = 1.0
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a2 = 0.0
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d1 = 3.2
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puts " i d"
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for i in 2 .. maxIt
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a = a1 + (a1 - a2) / d1
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for j in 1 .. maxItJ
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x = 0.0
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y = 0.0
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for k in 1 .. 1 << i
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y = 1.0 - 2.0 * y * x
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x = a - x * x
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end
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a = a - x / y
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end
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d = (a1 - a2) / (a - a1)
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print "%2d %.8f\n" % [i, d]
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d1 = d
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a2 = a1
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a1 = a
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end
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end
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main()
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