how to use nested functions in simulink

hello all,

I am using matlab function of simulink ,in my function some where needs the data from another function and when it gete this data it sends it to another one like below example

how can I implement this ?

thanks alot

function A = main function(a1,a2)

firsi_var =odeset(@func1,....)

second var= ode15s(@func2, first_var,...)

end

[Walter Roberson]

Have your MATLAB Function Block call mainfunction

There are restrictions against using anonymous functions directly in MATLAB Function Block, but you can call a function that uses them.

You might possibly need to initialize first_var before assigning to it. Sometimes in Simulink it is easier to just create the structure directly instead of returning it from a function.

[hamid]

thank you Walter ,my main function is in the matlab function and for the second function when I call another function it gives this error:

Function handles cannot be passed to extrinsic functions.

this part of my code in simulink is:

options = odeset('Events',[value_ejection,isterminal_ejection,direction_ejection]);
dvdt_ejection = [lvdt ; rvdt  ;pudt ; padt; aodt ; vcdt ; avdt; pvdt; mtdt ; tcdt];
[t_e,v_e,TE_e,VE_e] = ode15s(@volume_ejection,tspan,v0,options);

the volume_ ejection function's outputs are:lvdt,rvdt ,pudt ,padt ,aodt ,_vcdt ,avdt ,pvdt, mtdt ,tcdt

[Hetvi Patel]

hello hamid ,i am facing the same problem.Did you find a solution for it?

[Hetvi Patel]

[Tv,ZV] = ode15s (fcn, t_v, ZV0, solver_options);

solver_options = odeset ('Mass', TM_Matrix, 'MassSingular', 'yes');
 
fcn = @(t,T) Thermomodel_fcnDAE(T, L_Matrix, Pv_Vektor, T_ref_Pv, T_K);
   

[Tv,ZV] = ode15s (fcn, t_v, ZV0, solver_options);
   
   function dT = Thermomodel_fcnDAE(T, L_Matrix, Pv_Vektor, T_ref_Pv, T_K)
 
global count_fcn  
global Pv_out     
 
count_fcn = count_fcn + 1;
 
Pv_out = Pv_Vektor;
Pv_out(1)  = Pv_Vektor(1)*(1+3.9/1000*(T(1)-T_ref_Pv)); 
Pv_out(2) = Pv_Vektor(2)*(1+3.9/1000*(T(2)-T_ref_Pv));
dT = L_Matrix * [T; T_K] + Pv_out;
end

THESE ARE MY EQUATIONS