7.m x + Problem 1 data = readmatrix( 'population. csv' ); t = data(1, :) ; N = data(2, : ); $9% Determine your stepsize dt from the vector t 9%%% Use the appropriate second order differences from the Theory Lecture %%% For dN/dt you will need to use a combination of the above differences, $%% but the choice will be obvious based on which direction you can/cannot $%% go in the horizontal axis. Whenever possible use central difference; %% only use forward or backward when central is not possible. $%% Problem 2 data = readmatrix( ' brake_pad. csv' ) ; r = data(1, : ); T = data (2, : ); $%% Determine your stepsize dr from the vector r %%% Use the LHR formula from the coding lecture %%% Use the RHR formula from the coding lecture