Timeline for real symmetric matrix has real eigenvalues - elementary proof
Current License: CC BY-SA 3.0
7 events
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| Aug 12, 2014 at 13:33 | history | edited | Abdelmalek Abdesselam | CC BY-SA 3.0 |
fixed typo
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| Aug 1, 2014 at 12:28 | comment | added | David E Speyer | Theorem 4.48 on the previous page looks more on target to me. In any case, nice answer! By the way, a typo: $(\alpha - \gamma)^2 + 4 \beta^2$, not $(\alpha+\gamma)^2 + 4 \beta^2$ in the $2 \times 2$ case. | |
| Sep 13, 2013 at 13:11 | history | edited | Abdelmalek Abdesselam | CC BY-SA 3.0 |
added 491 characters in body
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| Sep 10, 2013 at 20:22 | history | edited | Abdelmalek Abdesselam | CC BY-SA 3.0 |
added 263 characters in body
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| Feb 28, 2013 at 14:21 | history | edited | Abdelmalek Abdesselam | CC BY-SA 3.0 |
added 66 characters in body
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| Feb 27, 2013 at 21:54 | history | edited | Abdelmalek Abdesselam | CC BY-SA 3.0 |
added 5 characters in body
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| Feb 27, 2013 at 21:41 | history | answered | Abdelmalek Abdesselam | CC BY-SA 3.0 |