I need to inject the first solution of equation (represented by the fonctiontinjec function) in the second equation (represented by the fonctiontest1 function). I don't know the procedure to use. Thank you for your help

I need to inject the first solution of equation (represented by the fonctiontinjec function) in the second equation (represented by the fonctiontest1 function). I dont' know the procedure to use. Thank you for your help. You will find the different code related to the different functions. The script "complexagrawal.m" called the function ode45 to resolve the system