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by lwerdna
1789 days ago
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They are different problems. Stripping the final character from "3.14159" does not produce the same result as rounding to 3.1416. The first action concerns a syntactic property of PI's decimal representation while the second action concerns a semantic property of PI's value. A related example given on https://xyproblem.info is a user asking (Y) how to extract the final 3 characters of a filename string when he probably intends to ask (X) how to retrieve a filename's extension. |
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