Perfect numbers: Difference between revisions
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m Henry's shortened expression |
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=={{header|J}}== |
=={{header|J}}== |
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<lang j>is_perfect=: +: = (#. |
<lang j>is_perfect=: +: = >:@(#. {.)/.~&.q: ::0:</lang> |
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The program defined above, like programs found here in other languages, assumes that the input will be a scalar positive integer. |
The program defined above, like programs found here in other languages, assumes that the input will be a scalar positive integer. |
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