UPC: Difference between revisions
Content added Content deleted
(promoted to (full) task status.) |
m (→{{header|Factor}}: mod zero? -> divisor?) |
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{{works with|Factor|0.99 2019-10-06}} |
{{works with|Factor|0.99 2019-10-06}} |
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<lang factor>USING: combinators combinators.short-circuit formatting grouping |
<lang factor>USING: combinators combinators.short-circuit formatting grouping |
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kernel locals math math.vectors sequences |
kernel locals math math.functions math.vectors sequences |
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unicode ; |
sequences.repeating unicode ; |
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CONSTANT: numbers { |
CONSTANT: numbers { |
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: valid-checksum? ( seq -- ? ) |
: valid-checksum? ( seq -- ? ) |
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{ 3 1 } 12 cycle v* sum 10 |
{ 3 1 } 12 cycle v* sum 10 divisor? ; |
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: valid-upc? ( seq -- ? ) |
: valid-upc? ( seq -- ? ) |
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