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Is it possible for user written algorithms to outperform libraries' built-in optimized functions?
6 votes

This might be tangent but i feel it worth adding. A common way for user code to beat libraries is to exploit structure the libraries are not aware of. Block diagonal matrices are easier to work in ...

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Compile-time error control vs. interval arithmetic?
2 votes

I find an 8 times overhead a bit surprising, the most intense operation i have in mind is 4 times overhead, namely multiplication. The rest could be due to an inefficient library though. I am using ...

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