Hi Bode,
I understand that you want to check Turing instability using your code. It is my understanding that in your file, “turing_condition.m”, the formula for “H2” is wrong. For Turing instability with diffusion, “H2” <0. The correction is as follows:
function [H1,H2]=turing_condition(d1,d2,jaco_matrix)
j=jaco_matrix;
H1=(d1)*(j(2,2))+(d2)*(j(1,1));
H2=(-(H1)^2)+4*(d1)*(d2)*(det(j));
This gives “H2” <0 which shows Turing instability. Follow the link on Turing conditions for better understanding,
Thank you,
Abhimenyu
