MATLAB: Nonscalar arrays of function handles are not allowed; use cell arrays instead.

Question

a_vec=[0.020 0.025 0.030];
for i=1:length(a_vec)
dP_dt_1(i)=@(P) (a_vec(i).*P)-(b.*P.^2);
[t_ode45_vec_1,y_ode45_vec_1] = ode45(@(P,t) dP_dt_1(t),[t_0 t_max],P_0);
figure(5)
plot(t_ode45_vec_1,y_ode45_vec_1)
hold on
end

Hi everyone, when I try to run this piece of code, I get an error :

Nonscalar arrays of function handles are not allowed; use cell arrays instead.

How can I resolve this error?

Thanks in advance!

Answer 1

You don't need to create an array of function handles. You just need to construct one function handle to use for that iteration. So just

dP_dt_1 = @(P) (a_vec(i).*P)-(b.*P.^2);