Timeline for solving tridiagonal system with multiple right hand sides
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jan 13, 2017 at 14:12 | answer | added | DrHansGruber | timeline score: 1 | |
| Apr 2, 2016 at 15:47 | comment | added | Federico Poloni | That $N^2$ may be missing a coefficient 2 in front of it, but your analysis looks correct to me. As usual, computing inverses explicitly is the wrong choice -- not at all surprising: the same happens for dense matrices. | |
| Apr 2, 2016 at 15:42 | comment | added | hardmath♦ | Since $A$ remains constant, the usual preference is to store $A$ in its factored form $LL^T$, since the back-solve and forward-solve are $O(N)$ complexity. | |
| Apr 2, 2016 at 2:42 | history | asked | me10240 | CC BY-SA 3.0 |