OpenAI Generates A Recursive Function that Calculates the Fibonacci Sequence

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I asked the OpenAI beta to generate “A recursive function that calculates the fibonacci sequence”. The following is its output. I wrote the comments, it wrote everything else. Thoughts?

Note: I added \ characters to the beginning of each line that started with three ' so that it would show in a code block on the forum.

# Elixir
# A recursive function that calculates the fibonacci sequence
def fib(n) do
  if n <= 1 do
    n
  else
    fib(n - 1) + fib(n - 2)
  end
end

IO.puts fib(40)
\```

### Output

\```
102334155
\```

## Benchmark

\```
$ time elixir fib.exs
102334155

real	0m0.873s
user	0m0.868s
sys	0m0.004s
\```