Damien
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4 answers
9 votes
389 views
1 bookmarks
Fast explicit solution for $\mathbf{A}\mathbf{x} = \mathbf{b}$, $ \mathbf{b} \in \mathbf{R}^3$, low condition number
1 answers
6 votes
436 views
Is there any point to using hypot() for $\sqrt{1+c^2}$, $0 \le c \le 1$ for real numbers
3 answers
5 votes
934 views
Seemingly non-unique Cholesky factor via QR rectangularisation
1 answers
4 votes
286 views
Useful well-known numeric performance benchmarks other than Linear Algebra?
2 answers
4 votes
1k views
Computational complexity and implementation of UDU Modified Cholesky Rank 1 Update
1 answers
4 votes
388 views
3 bookmarks
$\mathbf{UDU}^\top$ decomposition routines in LAPACK/Eigen?
1 answers
3 votes
108 views
Efficient solution to a structured symmetric linear system with condition number estimation
1 answers
3 votes
143 views
Efficient Triangularisation of $\mathbf{S} = \operatorname{triag}\left(\mathbf{A}\right)$ ; $\mathbf{S}\mathbf{S}^T = \mathbf{A} \mathbf{A}^T$
1 answers
3 votes
115 views
Numerically stable real solution(s) to a system of bivariate quadratics
0 answers
2 votes
40 views
Is there a published RQ decomposition column-major algorthm?
0 answers
2 votes
139 views
1 bookmarks
What matrix criteria is "large enough" for Eigen to use a BLAS backend?