Prime triangle: Difference between revisions
m
→{{header|J}}: trying to give credit has become a blurry issue
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}}==
<lang J>is_prime=: 1&p:@(+/)
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