Each new term in the Fibonacci sequence is generated by adding the previous two terms. By starting with 1 and 2, the first 10 terms will be:

1, 2, 3, 5, 8, 13, 21, 34, 55, 89, ...Find the sum of all the even-valued terms in the sequence which do not exceed four million.

what is the matlab code

I have no idea what to do i got this so far and i do not know if its right???

f=zeros(1,4000000);

f(1)=1;

f(2)=1;

for j= 3:4000000

f(j)=f(j-1)+f(j-2);

end

sum(f<4000000)