Output from while-loop at fixed values
显示 更早的评论
I am running time-dependent simulations with variable time-step size dt in seconds. I have implemented a while-loop that updates the elapsed time t_elapsed as t_elapsed + dt and stops when t_elapsed > t_total where t_total is a predefined number in seconds. Now I want to output the solution (a vector) to a text file at every x seconds, i.e. every 3600 seconds. This problem throws me of my game a bit as dt is now variable. Any help is much appreciated.
Arjan
采纳的回答
dpb
2020-3-16
Either compute the number of timesteps corresponding to your dt and desired frequency if dt is constant and output every N timesteps:
N=Tout/dt;
if mod(iterNo,N)==0
fprintf(fid,data)
end
or, alternatively, test the time variable modulo Tout is within dt. ismembertol might be of interest here for floating point comparisons.
更多回答（0 个）
类别
在 帮助中心 和 File Exchange 中查找有关 Strategy & Logic 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
