8:58 AM
1

I think that it might be useful to add somewhere advice about other possibilities how to search. (I am not sure what would be right place, but it would be nice to have it somewhere where new users who are reading through help could notice it.) I think that it is useful to know that apart from t...

2 hours later…
10:35 AM
@BAYMAX Not exactly your question, but these ones seem a bit related - maybe they can help you to guess some other reasonable keywords for which to search.
I have tried searchingfor $|\rho(X,Y)|=1$ and for $\rho(X, Y) = \pm1$.
Also I've tried a few Google searches.

Thanks for trying :)!