Catalan numbers: Difference between revisions
→{{header|Ruby}}: use sum method
(add lambdatalk code) |
(→{{header|Ruby}}: use sum method) |
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Line 4,655:
=={{header|Ruby}}==
<syntaxhighlight lang="ruby">def factorial(n)
(1..n).reduce(1, :*)
Line 4,670 ⟶ 4,669:
def catalan_rec1(n)
return 1 if n == 0
(0...n).
end
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