Piprimes: Difference between revisions
→{{header|Ruby}}: Add Ruby
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</pre>
=={{header|Ruby}}==
<syntaxhighlight lang="ruby">require 'prime'
pi = 0
pies = (1..).lazy.map {|n| n.prime? ? pi += 1 : pi}.take_while{ pi < 22 }
pies.each_slice(10){|s| puts "%3d"*s.size % s}</syntaxhighlight>
{{out}}
<pre> 0 1 2 2 3 3 4 4 4 4
5 5 6 6 6 6 7 7 8 8
8 8 9 9 9 9 9 9 10 10
11 11 11 11 11 11 12 12 12 12
13 13 14 14 14 14 15 15 15 15
15 15 16 16 16 16 16 16 17 17
18 18 18 18 18 18 19 19 19 19
20 20 21 21 21 21 21 21
</pre>
=={{header|Sidef}}==
<syntaxhighlight lang="ruby">1..(prime(22)-1) -> map { .prime_count }.say</syntaxhighlight>
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