Can someone please tell me how the following notation is named? $A(x)\asymp B(x)$ (where $A$ and $B$ are two real functions)
Thanks
2026-03-31 08:38:34.1774946314
Notation for two functions
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$A \asymp B \iff \exists\, c,d>0 : c|B| \leq |A| \leq d|B|$.