-unit_test_equals("zero order divided_difference_coefficients", ...
- [1], ...
- divided_difference_coefficients([0]));
-
-unit_test_equals("first order divided_difference_coefficients", ...
- [-1, 1] / pi, ...
- divided_difference_coefficients([0, pi]));
-
-unit_test_equals("second order divided_difference_coefficients", ...
- [1, -2, 1] / (2*pi^2), ...
- divided_difference_coefficients([0, pi, 2*pi]));