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Nick Alger's user avatar
Nick Alger's user avatar
Nick Alger's user avatar
Nick Alger
  • Member for 12 years
  • Last seen this week
15 votes
3 answers
6k views

Finding which triangles points are in

15 votes
2 answers
589 views

Is there any way to do "double preconditioning"

10 votes
2 answers
588 views

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

9 votes
2 answers
762 views

Applying matrix square root inverse in matrix-free regime

9 votes
1 answer
215 views

Guidelines for nested preconditioners

8 votes
2 answers
660 views

Why does conjugate gradient work with this nonsymmetric preconditioner?

8 votes
3 answers
2k views

Choosing subset of vectors to approximate a subspace

7 votes
1 answer
2k views

High quality flexible GMRES (FGMRES) implementation

6 votes
1 answer
864 views

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

5 votes
1 answer
125 views

Additional cost associated with quad (or higher) precision

4 votes
0 answers
100 views

Pade-like approximation, but force poles to be negative

4 votes
2 answers
211 views

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

3 votes
0 answers
82 views

Absorbing BC's / PML on a graph