I can't figure out how to input a periodic simple continued fraction in Wolfram Alpha on browser. For instance, the continued fraction of sqrt(2) is [1;(2)] where the 2 repeats forever. If I input sqrt(2) then I get [1; 2^_] as plaintext for the continued fraction, but if I plug this back into the search bar I don't get sqrt(2).
How does one evaluate a periodic simple continued fraction with Wolfram Alpha?
Thank you.