Odd and square numbers: Difference between revisions
→{{header|Ruby}}: Add Ruby
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</pre>
=={{header|Ruby}}==
<syntaxhighlight lang="ruby">lo, hi = 100, 1000
(Integer.sqrt(lo)..Integer.sqrt(hi)).each{|n| puts n*n if n.odd?}</syntaxhighlight>
{{out}}
<pre>
121
169
225
289
361
441
529
625
729
841
961
</pre>
=={{header|Sidef}}==
<syntaxhighlight lang="ruby">var lo = 100
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