Catalan numbers: Difference between revisions

Catalan numbers (view source)

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Revision as of 05:06, 31 July 2023 (view source) Laurence (talk \| contribs) (→‎{{header\|Fōrmulæ}}) ← Older edit		Latest revision as of 18:56, 1 May 2024 (view source) Langurmonkey (talk \| contribs) (→‎{{header\|langur}})
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Line 2,310: =={{header\|EasyLang}}== <syntaxhighlight lang="text"> ~~proc~~func catalan n ~~. ans~~ . if n = 0 ~~ans~~ = return 1 ~~else~~ . return ~~call~~2 * (2 * n - 1) * catalan (n - 1) hdiv (1 + n) ~~ans = 2 * (2 * n - 1) * h div (1 + n)~~ . . for i = 0 to 14 ~~call~~ print catalan i h ~~print h~~ . </syntaxhighlight> ~~{{out}}~~ ~~<pre>~~ 1 1 2 5 14 42 ~~132~~ ~~429~~ ~~1430~~ ~~4862~~ ~~16796~~ ~~58786~~ ~~208012~~ ~~742900~~ ~~2674440~~ ~~</pre>~~ =={{header\|EchoLisp}}== Line 3,799 ⟶ 3,778: =={{header\|langur}}== {{trans\|Perl}} <syntaxhighlight lang="langur">val .factorial = ffn(.x) { if(.x < 2: 1; .x x self(.x - 1)) } val .catalan = ffn(.n) { .factorial(2 x .n) / .factorial(.n+1) / .factorial(.n) } for .i in 0..15 { Line 6,190 ⟶ 6,170: {{libheader\|Wren-fmt}} {{libheader\|Wren-math}} <syntaxhighlight lang="~~ecmascript~~wren">import "./fmt" for Fmt import "./math" for Int var catalan = Fn.new { \|n\| Line 6,253 ⟶ 6,233: 15 9694845 </pre> =={{header\|XLISP}}== <syntaxhighlight lang="lisp">(defun catalan (n)