How to calculate ode45 of system of equations with particular initial conditions?
조회 수: 1 (최근 30일)
이전 댓글 표시
Let's say that we have system of equations (I put some random values) such as:
for
I don't know how to type initial conditions different than these for t=0 in ode45. Is there an easy way to calculate ode45 with this or any similar system of equations?
댓글 수: 0
채택된 답변
Jan
2021년 5월 15일
편집: Jan
2021년 5월 15일
This looks trivial actually. Your initial values are:
y0 = [5, 12]
It is not required, that the initial time is 0. You can start at t=1 also without any limitations.
But if you do need the trajectory from t=0 to t=tEnd, start at t=1 with the known initial conditions and integrate backwards:
y0 = [5, 12];
[t, y] = ode45(@YourODE, [1, 0], y0);
Now t(end) = 0 and y(end, :) is the trajectory for t=0.
댓글 수: 0
추가 답변 (0개)
참고 항목
카테고리
Help Center 및 File Exchange에서 Ordinary Differential Equations에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!