How can I correct this error "Invalid expression. When calling a function or indexing a variable, use parentheses. Otherwise, check for mismatched delimiters"?

[t,y] = ode45((equfunc().m);(0,200);(1));

How to correct this ODE using a ODEsolver(ode45), so that I can run it properly and also, solve the ODE. After that, I can do the final step (plotting graphs)?

[Dyuman Joshi]

Please attach the equfunc.m file.

The syntax to call ode45 is incorrect, you can check out the correct syntax here - ode45

Answer 1

[Torsten]

Maybe

[t,y] = ode45(@equfunc,[0 200],1); 
plot(t,y)

Look at the examples provided in the documentation of ode45:

https://uk.mathworks.com/help/matlab/ref/ode45.html