Prime triangle: Difference between revisions
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m (→{{header|Phix}}: odd/even mod, but ditching avail[] was actually more significant. 40% faster.) |
m (→{{header|J}}: trying to give credit has become a blurry issue) |
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=={{header|J}}== |
=={{header|J}}== |
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Paraphrase of [[#C|C]] based on [[oeis:wiki/Prime triangles|OEIS]]: |
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<lang J>is_prime=: 1&p:@(+/) |
<lang J>is_prime=: 1&p:@(+/) |
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