Fix implementations of eigen and eigvals
#670
| Job | Run time |
|---|---|
| 46s | |
| 7m 26s | |
| 9m 37s | |
| 9m 37s | |
| 7m 31s | |
| 10m 1s | |
| 7m 34s | |
| 9m 3s | |
| 9m 13s | |
| 7m 41s | |
| 8m 2s | |
| 8m 3s | |
| 7m 51s | |
| 10m 32s | |
| 10m 28s | |
| 9m 36s | |
| 7m 59s | |
| 8m 5s | |
| 12m 58s | |
| 11m 59s | |
| 7m 51s | |
| 8m 54s | |
| 5m 39s | |
| 11m 30s | |
| 9m 32s | |
| 3h 37m 28s |