The finite difference approximation for the second derivative at point xi using a Taylor series is as follows:
https://www.powershow.com/view1/c3390-ZDc1Z/The_finite_difference_approximation_for_the_second_derivative_at_point_xi_using_a_Taylor_series_is_as_follows_powerpoint_ppt_presentation
Icons create by Freepik from www.flaticon.com/