FX_IDC:GBPUSD   British Pound / U.S. Dollar
What is called Gann Fan is actually set of angles that are part of the square.
In the video I've marked price swings using time balance concept and number 144
After marking swings I've put Gann Fan and set it to hit top and bottoms of the swings.
Next step I duplicated Gann Fan with the same settings to show that all price swings follow some angle and angle intersections create change in the trend.
Last step was to show importance of 3/4 angle.
Disclaimer

The information and publications are not meant to be, and do not constitute, financial, investment, trading, or other types of advice or recommendations supplied or endorsed by TradingView. Read more in the Terms of Use.