14 lines
426 B
Text
14 lines
426 B
Text
require "big"
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def bernoulli(n)
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ar = [] of BigRational
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(0..n).each do |m|
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ar << BigRational.new(1, m+1)
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m.downto(1) { |j| ar[j-1] = j * (ar[j-1] - ar[j]) }
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end
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ar[0] # (which is Bn)
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end
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b_nums = (0..61).map { |i| bernoulli(i) }
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width = b_nums.map{ |b| b.numerator.to_s.size }.max
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b_nums.each_with_index { |b,i| puts "B(%2i) = %*i/%i" % [i, width, b.numerator, b.denominator] unless b.zero? }
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