Figure 4
From: Quantum pricing with a smile: implementation of local volatility model on quantum computer
![Figure 4](http://media.springernature.com/full/springer-static/image/art%3A10.1140%2Fepjqt%2Fs40507-022-00125-2/MediaObjects/40507_2022_125_Fig4_HTML.png)
The gate which outputs whether \(x=j\) and \(y\in [\alpha ,\beta )\) or not. The control by a register means the multiple control by qubits therein