Help with recursion

So, can anyone tell me why does this http://pastie.org/1883229 recursive function just "jump out" of recursion when it returns d * 2 at depth == 1? It doesn't iterate all the way back down as it should, it just returns d * 2 to main function.

You do nothing when depth > 1.  It is going through all the stages, instead do return calc(d, depth - 1) * 2; or something.

I HELPED HIM!