Output from while-loop at fixed values
조회 수: 1 (최근 30일)
이전 댓글 표시
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
댓글 수: 0
채택된 답변
dpb
2020년 3월 16일
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.
추가 답변 (0개)
참고 항목
카테고리
Help Center 및 File Exchange에서 Get Started with Optimization Toolbox에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!