在调用求解器函数里。在MATLAB中,maxstepsize是ode23、ode45、ode113和ode15s等求解常微分方程的函数中的一个选项参数,用于指定求解器在每一步中的最大步长。
step应该是前面定义的一个步长,size函数是表示一个矩阵的大小。例如:当step=2时,size(2,2)就表示矩阵维度是一个两行两列的矩阵。
你的错误是算法步长小于你指定的最小步长,在配置仿真里面修改最小步长,使最小步长变大些
采用变步长求解器时,最大步长(maximum step size)默认是auto,取值为仿真时间间隔的1/50,对于10秒的仿真时间而言,这个值就是0.2。变步长求解器有一套机制可以根据误差自动调整步长,使得仿真结果满足要求,但这种机制并不总是有效。例如,对于没有状态量的模型,可能就会因步长不当而导致错误的仿真...
채택된 답변:James Tursa MATLAB Online에서 열기 f =@(x,y) 150*(x-y*exp(100)); a = 0; b = 2; n = 150; h = (b-a)/n;% Step Size y(1) = 0;%Initial Condition i= 0; forx = a:h:b i = i + 1; ...
改变下算法,用采用23tb 23s的算法试下,不行的话就要改变步长,把最小步长改大点 试下0.2或者更小,不过这样误差就大了,还可以把相对误差和绝对误差改下,
stepsize=stepsize*10;% end end Edit: or what Stephen said, it is probably much wiser ;) 0 件のコメント サインインしてコメントする。 Steven Lord2020 年 2 月 5 日 0 リンク 翻訳 MATLAB Online で開く Rather than computing the elements yourself by repeated multiplication consider loopi...
I have a basic doubt in simulink solver setting , that What is the difference between Step size and Sample Time ? 0 Comments Sign in to comment. Sign in to answer this question.Accepted Answer Askic V on 7 Mar 2023 Vote 0 Link According to Matlab's documentation, The s...
MATLAB Online で開く hello, I tried using ODE45 to solve a system of equations however my graph came out looking wonky as well as a warning of [Warning: Failure at t=3.010481e-15. Unable to meet integration tolerances without reducing the step size below the smallest val...
To open the reference model, at the MATLAB®command prompt, enter: model ='ssc_pneumatic_rts_reference'; open_system(model) Simulate the model: sim(model) Create a semilogarithmic plot that shows how the step size for the solver varies during the simulation. ...