f=@(t,y) 4exp(0.8t)-0.5*y; tspan = [0 4]; y0 = 2; h = 1; [t,y] = ode_euler(f,tspan,y0,h)

3 次查看（过去 30 天）

reda kriker 2019-10-5

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/483704-f-t-y-4-exp-0-8-t-0-5-y-tspan-0-4-y0-2-h-1-t-y-ode_euler-f-tspan-y0-h

回答： Pavel Osipov 2019-10-5

f=@(t,y) 4*exp(0.8*t)-0.5*y;
tspan = [0 4];
y0 = 2;
h = 1;
[t,y] = ode_euler(f,tspan,y0,h)

why this code is not working

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

darova 2019-10-5

Any chance you can show euler function?

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Pavel Osipov 2019-10-5

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/483704-f-t-y-4-exp-0-8-t-0-5-y-tspan-0-4-y0-2-h-1-t-y-ode_euler-f-tspan-y0-h#answer_394929

tspan = [0 4];
y0 = 2;
[t1,y1] = ode45(@(t,y) 4*exp(0.8*t)-0.5*y,tspan,y0,h);
figure('name','Reda','color','w');
plot(t1,y1, 'r-','LineWidth',2);grid on;
xlabel('Time');ylabel('Solution y(Time)');
title('And you instead of a blanket substitute solver Euler');