Fibonacci numbers in Io

Example for versions Io-2008-01-07

This example uses Binet’s formula. Math functions are called by sending a message to the number which is an object as well. 

g := (5 sqrt + 1) / 2;
for(i,1,16,
   N := ((g pow(i)) - ((1-g) pow(i))) / (5 sqrt);
   N round print;
   ", " print;
);
"..." println;