[交流] Euler 工程 第二题：Fibonacci数列中小于4百万的偶数的和已有7人参与

a = 1;
b = 2;
n = 2
tic;
while (a<4000000 && b<4000000)
   a = a+b;
   if mod(a,2)==0
       n = n+a;
   end
   b = a+b;
   if mod(b,2)==0
       n = n+b;
   end
end
toc;
n

Elapsed time is 0.000008 seconds.
n =
     4613732