%% This function defines the optimization equation and fitness function

function y = funobj(X)

% Curing kinetic equation

ytemp = exp(p1 + p2.*x + p3.*x.^2 + p4.*x.^3).*… exp(−1000.*(phi(5) + phi(6).*x + phi(7).*x.^2 + phi(8).*x.^3)./(R*pT)).*(k1 + k2.*x.^m).*(1 − x).^n;

% Mathematical formulation of the fitness function

F_Curv = ytemp;

y = sum((F_Curv-py).^2);

y = y/Num;

end