I am trying to store every value into a 1D Array from a for loop

Tried to have the value Phiij in a (1,9) array from a for loop. Tried multiple things.

function [viscosity,Phiij] = project2m(Chemical1,Chemical2,Chemical3)
   
  M = [Chemical1(2), Chemical2(2), Chemical3(2)] %molec weight array
  mu = [Chemical1(3), Chemical2(3), Chemical3(3)] %viscosity array
  MF = [Chemical1(1), Chemical2(1), Chemical3(1)] %molar fraction
   ArrayPhi = zeros(1,9);


for i = 1:3
 for   j = 1:3
    
     
   
    if i ~= j
     Phiij = (1/sqrt(8))*((1+(M(i)/M(j)))^(-.5))*(1+((mu(i)/mu(j))^.5)*((M(j)/M(i))^.25))^2
     
    else Phiij = 1 
   
    end
  
end
end 


for i = 1:3
    X1 = (MF(i) * ArrayPhi(i)) % this isnt working because of index error 
viscosity = 0;
 
end

Answer 1

[Alan Stevens]

It's difficult to tell exactly what you are trying to do, but perhaps the following is close to what you want:

ArrayPhi = zeros(3,3);
for i = 1:3
 for   j = 1:3
 
    if i ~= j
        Phiij = (1/sqrt(8))*((1+(M(i)/M(j)))^(-.5))*(1+((mu(i)/mu(j))^.5)*((M(j)/M(i))^.25))^2;
    else
        Phiij = 1;
    end
    ArrayPhi(i,j) = Phiij;
  
end
end 
X1 = MF * ArrayPhi;