Timeline for How to find a subset of a matrix that has minimum condition number? [duplicate]
Current License: CC BY-SA 3.0
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| when toggle format | what | by | license | comment | |
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| Jan 8, 2016 at 14:08 | history | closed |
Federico Poloni Neil Strickland András Bátkai Chris Godsil Wolfgang |
Duplicate of Optimizing the condition number | |
| Jan 8, 2016 at 13:47 | comment | added | Federico Poloni | In my answer to the duplicate question, I have a link to a Matlab toolbox (written by me) that solves a similar problem, namely, it finds a $m\times m$ submatrix $B$ of a $m\times n$ matrix $A$ such that $B^{-1}A$ has all entries bounded by 1. In my application at least, this property is sufficient to get good numerical properties. It should also possible to bound explicitly $\kappa(B)/\kappa(A)$. | |
| Jan 8, 2016 at 13:39 | comment | added | jqx1991 | I am not major in algebra or mathematics, I encounter this question on the works of Spectrum Estimation of Camera. So it will be appreciate if there exists prepared toolbox. | |
| Jan 8, 2016 at 11:35 | review | Close votes | |||
| Jan 8, 2016 at 14:08 | |||||
| Jan 8, 2016 at 11:08 | review | First posts | |||
| Jan 8, 2016 at 12:27 | |||||
| Jan 8, 2016 at 11:05 | history | asked | jqx1991 | CC BY-SA 3.0 |