1 December 2021

--> (faddeev-leverrier (println@reshape 3 3 '(3 1 5 3 3 1 4 6 4)))
+---+---+---+
| 3 | 1 | 5 |
+---+---+---+
| 3 | 3 | 1 |
+---+---+---+
| 4 | 6 | 4 |
+---+---+---+
(1 -10 4 -40)