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Catalan numbers/Pascal's triangle: Difference between revisions
Catalan numbers/Pascal's triangle (view source)
Revision as of 12:58, 8 September 2017
, 6 years agoAdded Julia language
(Added Kotlin) |
(Added Julia language) |
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Line 888:
[510,5.491717746183512e+302]
[511,null]</lang>
=={{header|Julia}}==
{{trans|Matlab}}
<lang julia># v0.6
function pascal(n::Int)
r = ones(Int, n, n)
for i in 2:n, j in 2:n
r[i, j] = r[i-1, j] + r[i, j-1]
end
return r
end
function catalan_num(n::Int)
p = pascal(n + 2)
p[n+4:n+3:end-1] - diag(p, 2)
end
@show catalan_num(15)</lang>
{{out]}
<pre>catalan_num(15) = [1, 2, 5, 14, 42, 132, 429, 1430, 4862, 16796, 58786, 208012, 742900, 2674440, 9694845]</pre>
=={{header|Kotlin}}==
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