Hi all.

I recently got into challenging myself with some of the tasks over at

Project Euler (www.projecteuler.net), and while working on the

solution for one of them (# 14) I came across a Ruby problem. Now, I’m

pretty sure that this is just a dumbness on my part, but I don’t know

how to fix this problem because I see no differences between my code

and the examples at http://www.whytheluckystiff.net/ruby/pickaxe/ for

declaring and calling methods.

Here’s the code (it’s tiny so I’ll copy the whole thing):

class Test

def series(n,x)

if (n == 1)

return x

elsif (n % 2 == 0 )

return sequence(n/2, x + 1)

else

return sequence(3*n + 1, x + 1)

end

end

max_num = 1

max_len = 1

for i in 2…1_000_000 do

my_len = series(i,1)

if (my_len > max_len)

max_len = my_len

max_num = i

end

end

print max_num , ": chain of length " , max_len

end

The error I’m getting is this:

undefined method `series' for Test:Class (NoMethodError) from euler14.rb:14:in`

each’

I see no clear reason why I’m getting this error. Can you un-dumb me?

Thanks in advance,

Andrew