Factorial: Difference between revisions
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=={{header|Langur}}== |
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=== using built-in fold function === |
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<lang Langur>val .factorial = f(.n) fold(f .a x .b, series 1 to .n) |
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writeln .factorial(7)</lang> |
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=== using recursion === |
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<lang Langur>val .factorial = f given .x { |
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case < 0: -1 |
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case 0: 1 |
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default: .x x self(.x - 1) |
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} |
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writeln .factorial(7)</lang> |
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{{out}} |
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<pre>5040</pre> |
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=={{header|Lasso}}== |
=={{header|Lasso}}== |
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