Initial data commit

Task/Fibonacci-sequence/MATLAB/fibonacci-sequence-2.m

@@ -0,0 +1,16 @@
+function F = fibonacci(n)
+
+    Fn = [1 0]; %Fn(1) is F_{n-2}, Fn(2) is F_{n-1}
+    F = 0; %F is F_{n}
+
+    for i = (1:abs(n))
+        Fn(2) = F;
+        F = sum(Fn);
+        Fn(1) = Fn(2);
+    end
+
+    if n < 0
+        F = F*((-1)^(n+1));
+    end
+
+end