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Nick Alger

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linear-algebra

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494 votes cast

Answers (38)

Votes Activity Newest

12	Solving linear system of the form $ABx=b$
12	Linear programming with matrix constraints
9	Fast explicit solution for $\mathbf{A}\mathbf{x} = \mathbf{b}$, $ \mathbf{b} \in \mathbf{R}^3$, low condition number
9	Fast vector - “diagonal” matrix multiplication
9	Extracting diagonal of an approximately diagonal matrix when we don't know its entries

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Reputation (2,883)

+40	Pade-like approximation, but force poles to be negative
+10	Calculating the log-determinant of a large sparse matrix
+10	Understanding the conditions for which ADMM can be applied
+10	Solving linear system of the form $ABx=b$

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Questions (13)

Votes Activity Newest

16	Finding which triangles points are in
15	Is there any way to do “double preconditioning”
9	Guidelines for nested preconditioners
8	Why does conjugate gradient work with this nonsymmetric preconditioner?
8	Extracting diagonal of an approximately diagonal matrix when we don't know its entries

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Tags (66)

38 linear-algebra × 13	17 sparse-matrix × 2
33 matrix × 6	15 reference-request × 2
31 optimization × 10	14 preconditioning × 9
23 linear-solver × 3	13 pde × 3
21 convex-optimization × 4	12 lapack × 2

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Bookmarks (30)

Votes Activity Newest Views Added

36	Symbolic software packages for Matrix expressions?
28	Conservation of a physical quantity when using Neumann boundary conditions applied to the advection-diffusion equation
26	What is the purpose of using integration by parts in deriving a weak form for FEM discretization?
23	Can diagonal plus fixed symmetric linear systems be solved in quadratic time after precomputation?
21	Diagonal update of a symmetric positive definite matrix

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	Computer Science	1,049 rep	7 silver badges16 bronze badges

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