9 lines
197 B
Ruby
9 lines
197 B
Ruby
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def sum(var, lo, hi, term, context)
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sum = 0.0
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lo.upto(hi) do |n|
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sum += eval "#{var} = #{n}; #{term}", context
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end
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sum
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end
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p sum "i", 1, 100, "1.0 / i", binding # => 5.18737751763962
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