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Catalan numbers/Pascal's triangle: Difference between revisions
→{{header|J}}
Line 140:
=={{header|J}}==
<lang j> Catalan=. }:@:(}.@:((<0 1)&|:) - }:@:
{{out|Example use}}
<lang j> Catalan 15
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1 4 10 20 35
1 5 15 35 70
( MiddleDiagonal=. (<0 1)&|: ) o PascalTriangle 5
1 2 6 20 70
( AdjacentLeft=.
1 4 15 1 5
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Catalan
}:@:(}.@:((<0 1)&|:) - }:@:
=={{header|Mathematica}}==
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