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06_initial_value_ode/prob2plot.m
Go to file| set(0, 'defaultAxesFontSize', 16) | |
| set(0,'defaultTextFontSize',14) | |
| set(0,'defaultLineLineWidth',3) | |
| dt = 0.1; | |
| t = [0:dt:3]; | |
| y = zeros(size(t)); | |
| y(1) = 1; | |
| for i = 2:length(t) | |
| dy = prob2_ode(t,y(i-1)); | |
| y(i) = y(i-1)+dt*dy; | |
| end | |
| a = figure(1); | |
| y_heun = Prob2ptC (@(t,y) prob2_ode(t,y), 0.1, 1, [0 3]); | |
| plot(t,exp(-t),t,y,t,y_heun); | |
| legend('Analytical','Euler','Heun','Location','Northeast') | |
| xlabel('Time') | |
| ylabel('Position') |