Index finite lists of positive integers: Difference between revisions
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=== Tacit |
=== Tacit versions === |
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Base 11 encoding: |
Base 11 encoding: |
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1 2 3 10 100 987654321 135792468107264516704251 7</lang> |
1 2 3 10 100 987654321 135792468107264516704251 7</lang> |
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Prime factorization (Gödelian) encoding: |
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<lang j> rank=. */@:(^~ p:@:i.@:#)@:>:@:x: |
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unrank=. <:@:(#;.1@:~:@:q:)</lang> |
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Example use: |
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<lang J> rank 1 11 16 1 3 9 0 2 15 7 19 10 |
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6857998574998940803374702726455974765530187550029640884386375715876970128518999225074067307280381624132537960815429687500 |
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unrank 6857998574998940803374702726455974765530187550029640884386375715876970128518999225074067307280381624132537960815429687500x |
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1 11 16 1 3 9 0 2 15 7 19 10</lang> |
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=== Bijective === |
=== Bijective === |
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