In Latex, what does X_n \asymp Y_n mean ?
But I somehow I find these explanations a bit confusing
In my case, I am talking about 2 sequences of numbers X_n and Y_n, so in latex, what does X_n \asymp Y_n mean ?
I really appreciate any help !
P/S Now does it make sense to have X_n \asymp Y_n, given that X_n is non-increasing and Y_n is non-decreasing ?