How can I solve an ODE in Matlab (2008a)
1 回表示 (過去 30 日間)
古いコメントを表示
I have an old version of Matlab (2008), when I try to create an ODE function and solve it, it does not work and errors appear as follows:
>> syms y(t)
??? Undefined function or method 'syms' for input arguments of type 'char'.
>> y(t) = dsolve(diff(y,t) == t*y)
??? Undefined function or variable 'y'.
In fact,this is a simple example to practice solving this type of equations. I want to solve another equation in the form of:
(dq_Pl (t))/dt = f_(Pl,T) R_T N_(T,0) e^(K_GR t) + f_(Pl,H) R_H N_(H,0) - k_El q_Pl (t)
I want to know the basics of solving such ODE's.
Thanks,
2 件のコメント
Star Strider
2016 年 4 月 30 日
Do you have the Symbolic Math Toolbox?
In the Command Window type:
ver
If you have it, it should appear in the list.
---------------------------
Assuming that you have it, then, type either:
help dsolve
or:
doc dsolve
to get the relevant information on how to use the function.
回答 (0 件)
参考
カテゴリ
Help Center および File Exchange で Equation Solving についてさらに検索
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!