Golden ratio/Convergence: Difference between revisions
→{{header|Ruby}}: Add Ruby
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</pre>
=={{header|Ruby}}==
<syntaxhighlight lang="ruby">
φ_convergence = Enumerator.produce(1.0r){|prev| 1 + 1/prev}
(_prev, c), i = φ_convergence.each_cons(2).with_index(1).detect{|(v1, v2), i| (v1-v2).abs <= 1E-5}
puts "Result after #{i} iterations: #{c.to_f}
Error is about #{c - (0.5 * (1 + (5.0**0.5)))}."
</syntaxhighlight>
{{out}}
<pre>Result after 14 iterations: 1.618032786885246
Error is about -1.2018646489142526e-06.
</pre>
=={{header|Scheme}}==
{{trans|ATS}}
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