News for hackers. Stuff that matters.
Re:Outperforming LAPACK with C++ metaprogramming by pletnes on Monday January 29, 2018 @11:01AM (#16258212)
Yes, Cramer’s rule (referred to in the article) does not give numerically stable results AFAIK - which is yet another can of worms. Good catch.
Re:Outperforming LAPACK with C++ metaprogramming by thanatropism on Monday January 29, 2018 @12:06PM (#16258765)
I don't think I have heard Cramer's rule mentioned without the caveat "but don't use this for real problems".
Re:Outperforming LAPACK with C++ metaprogramming by pletnes on Tuesday January 30, 2018 @10:50AM (#16266204)
It’s useful for certain theoretical proofs in analytic math - or so I’ve heard. Not all math is well suited to be coded into reliable software.