Hi guys i need help solving this system. I symplified the system to its basics. I want to get and plot y(t) in the end. My system tells me it doesnt know r. How can i tell the system to solve the ode of r within the ode of y? Where do I put the r0 in? I am an beginner in Matlab though :D Thank you very very much!! Stay safe and healthy you all!
initial conditions: y0 and r0
A is a function of y
tspan=linspace(0,10); %for both integrals y and r
[t1,y1] = ode45(@(t,y) Simulation(t,B,C,D,E,F), tspan, y0);
function dydt = Simulation (t,B,C,D,E,F)
drdt = -C*(B+D);
dydt = A- ( (y/r) * drdt);