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Nick Alger
  • Member for 10 years, 3 months
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16 votes
3 answers
5k views

Finding which triangles points are in

15 votes
2 answers
518 views

Is there any way to do "double preconditioning"

10 votes
2 answers
567 views

Extracting diagonal of an approximately diagonal matrix when we don't know its entries

9 votes
1 answer
197 views

Guidelines for nested preconditioners

8 votes
2 answers
488 views

Why does conjugate gradient work with this nonsymmetric preconditioner?

8 votes
2 answers
650 views

Applying matrix square root inverse in matrix-free regime

7 votes
3 answers
2k views

Choosing subset of vectors to approximate a subspace

7 votes
1 answer
819 views

Python trust region optimization code that allows ellipsoid-shaped trust regions

6 votes
1 answer
2k views

High quality flexible GMRES (FGMRES) implementation

5 votes
1 answer
112 views

Additional cost associated with quad (or higher) precision

4 votes
2 answers
203 views

Finding dominant eigenvectors of an operator that is small but costly to evaluate

4 votes
0 answers
62 views

Pade-like approximation, but force poles to be negative

3 votes
0 answers
75 views

Absorbing BC's / PML on a graph