i am trying to solve ODE with the help of laplace transform, but it shows error in doing so, why?

조회 수: 1(최근 30일)
syms x t s X
>> Dx = diff(x,t);
D2x = diff(Dx,t);
>> F=laplace(D2x+7*Dx+10*x(t)==20);
Error using sym/subsindex (line 864)
Invalid indexing or function definition. Indexing must follow MATLAB indexing. Function arguments must be symbolic variables,
and function body must be sym expression.
Error in sym/subsref (line 909)
R_tilde = builtin('subsref',L_tilde,Idx);
>>

채택된 답변

Swetha Polemoni
Swetha Polemoni 2021년 7월 28일
Hi
The error is due to usage of x(t) before decalaring it . Try the following line of code.
syms x(t)
Hope this helps

추가 답변(0개)

태그

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by