OctaveFunctions/ProjectEuler/Problem2.m

%ProjectEuler/Problem2.m
%This is a script to answer Problem 2 for Project Euler
%The sum of the even Fibonacci numbers less than 4,000,000

%Setup your Variables
fib = [1, 1, 2];	%Holds the Fibonacci numbers
currentFib = fib(end) + fib(end - 1);	%The current Fibonacci number to be tested
evenFib = [2];	%A subset of the even Fibonacci numbers

while(currentFib < 4000000)
	%Add the number to the list
	fib(end + 1) = currentFib;
	%If the number is even add it to the even list as well
	if(mod(currentFib, 2) == 0)
		evenFib(end + 1) = currentFib;
	end

	%Set the next Fibonacci
	currentFib = fib(end) + fib(end - 1);
end

sum(evenFib)

%Cleanup your variables
clear fib;
clear currentFib;
clear evenFib;