18 lines
448 B
Ruby
18 lines
448 B
Ruby
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harmonics = Enumerator.new do |y|
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res = 0
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(1..).each {|n| y << res += Rational(1, n) }
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end
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n = 20
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The first #{n} harmonics (as rationals):""
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harmonics.take(n).each_slice(5){|slice| puts "%20s"*slice.size % slice }
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puts
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milestones = (1..10).to_a
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harmonics.each.with_index(1) do |h,i|
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if h > milestones.first then
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puts "The first harmonic number > #{milestones.shift} is #{h.to_f} at position #{i}"
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end
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break if milestones.empty?
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end
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