Computational Science
Nick Alger's user avatar
Nick Alger's user avatar
Nick Alger's user avatar
Nick Alger
  • Member for 11 years, 6 months
  • Last seen this week
Profile Activity

13 Questions

Score Activity Newest Views
15 votes
3 answers
6k views

Finding which triangles points are in

15 votes
2 answers
573 views

Is there any way to do "double preconditioning"

10 votes
2 answers
585 views

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

9 votes
2 answers
735 views

Applying matrix square root inverse in matrix-free regime

9 votes
1 answer
212 views

Guidelines for nested preconditioners

8 votes
2 answers
606 views

Why does conjugate gradient work with this nonsymmetric preconditioner?

7 votes
1 answer
859 views

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

7 votes
1 answer
2k views

High quality flexible GMRES (FGMRES) implementation

7 votes
3 answers
2k views

Choosing subset of vectors to approximate a subspace

5 votes
1 answer
122 views

Additional cost associated with quad (or higher) precision

4 votes
2 answers
209 views

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

4 votes
0 answers
89 views

Pade-like approximation, but force poles to be negative

3 votes
0 answers
76 views

Absorbing BC's / PML on a graph

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