Bell numbers: Difference between revisions

Bell numbers (view source)

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→‎{{header|Haskell}}: Added a minor variant of bellTri in terms of Control.Arrow

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Revision as of 17:53, 24 February 2020 (view source) Hout (talk \| contribs) m (→‎{{header\|Python}}: Specified Python 2 for the earlier procedural version) ← Older edit		Revision as of 18:11, 24 February 2020 (view source) Hout (talk \| contribs) m (→‎{{header\|Haskell}}: Added a minor variant of bellTri in terms of Control.Arrow) Newer edit →
Line 729: 10726137154573358400342215518590002633917247281 </pre> And, of course, in terms of Control.Arrows, the triangle function could also be written as: <lang haskell>import Control.Arrow bellTri :: [[Integer]] bellTri = map snd (iterate ((last &&& id) . uncurry (scanl (+))) (1,[1]))</lang> =={{header\|Java}}==