Practical numbers: Difference between revisions
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(→Composition of pure functions: Explained the semantic type of the central function, which is concealed by the compiler hint.) |
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range(1, n) |
range(1, n) |
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)) |
)) |
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# The real underlying type of this function happens to be |
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# more concealed than revealed by the compiler type hint. |
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# |
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# It actually returns a Bool, and its second argument |
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# is an Int. |
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# |
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# The follow comment on type semantics was orginally attached, |
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# but was angrily removed by a serial "discourager" of |
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# rival approaches :-) |
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# |
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# sumOfAnySubset :: [Int] -> Int -> Bool |
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def until(p:bool) -> Any: |
def until(p: bool) -> Any: |
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'''The result of repeatedly applying f until p holds. |
'''The result of repeatedly applying f until p holds. |
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The initial seed value is x. |
The initial seed value is x. |
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# MAIN --- |
# MAIN --- |
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if __name__ == '__main__': |
if __name__ == '__main__': |
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main() |
main() |
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</lang> |
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{{Out}} |
{{Out}} |
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