1 A = tridiagonal(0, -1, 2, -1);
3 unit_test_equals("poisson tridiagonal of size zero is correct", ...
7 A = tridiagonal(1, -1, 2, -1);
9 unit_test_equals("poisson tridiagonal of size one is correct", ...
13 A = tridiagonal(2, -1, 2, -1);
14 expected = [2, -1; ...
16 unit_test_equals("poisson tridiagonal of size two is correct", ...
20 A = tridiagonal(3, -1, 2, -1);
21 expected = [2, -1, 0; ...
24 unit_test_equals("poisson tridiagonal of size three is correct", ...