-expected_A = [1, 0, 0, 0, 0; ...
- 16, -32, 16, 0, 0; ...
- 0, 16, -32, 16, 0; ...
- 0, 0, 16, -32, 16; ...
- 0, 0, 0, 0, 1];
+expected_A = [-1, 0, 0, 0, 0; ...
+ -16, 32, -16, 0, 0; ...
+ 0, -16, 32, -16, 0; ...
+ 0, 0, -16, 32, -16; ...
+ 0, 0, 0, 0, -1];