清空筛选条件
清空筛选条件

ODE45: only save the solution at final time

6 次查看（过去 30 天）
Sidafa
Sidafa 2017-5-10
评论： Priodyuti Pradhan 2020-12-12
I would like to only save the solution at the final time. Rather than the output argument "y" being an array of size (N, M), I only want to save the last row (which would correspond to the solution at tf).
I would like to avoid the following error:
Requested 442368x1828 (6.0GB) array exceeds maximum array size preference. Creation of arrays greater than this limit may take a long time and cause MATLAB to
become unresponsive. See array size limit or preference panel for more information.
Error in ode45 (line 428)
yout = [yout, zeros(neq,chunk,dataType)];
Thank you so much in advance.

请先登录，再回答此问题。

回答（1 个）

Jan
Jan 2017-5-11
You can request the output of 3 time steps:
tspan = [ti, (ti+tf) / 2, tf];
Then ignore the first two outputs.

类别

在 Help Center 和 File Exchange 中查找有关 Ordinary Differential Equations 的更多信息

标签

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by