So far, the popular drawing method of Gann's corner line in the market is inferred by later generations according to Gann's works, and he himself has not clearly explained the drawing method of Gann's corner line. But no matter which calculation method is used, it is the same, which is nothing more than the support or resistance of this group of fan lines to the stock price formation, and also needs to be combined with the time period to calculate the reversal. I'll tell you a very practical method: draw Gann corner lines at all important turning points, so that the corner lines will cover the K line like a big net. Although this looks chaotic, if you look closely, you will find that if the stock price breaks through an angle line, it will definitely stop at a certain line.

As for the Gann box you mentioned, I don't know whether you mean Gann's 469 square calculator or Gann's current price balance square. If it refers to a square with balanced time and price, its use method is to add the concept of time period on the basis of angle line. Gann believes that when time and price come at the same time, the possibility of stock price reversal will greatly increase. If you mean Gann's various calculators, you can't make it clear in one or two sentences. If you want to learn Gann's theory, you must first learn astrology and astronomy, which is the core of Gann's theory. If you don't know Gann's theory, you can't learn. I can help you solve any problem about Gann's theory, and I hope to help you again.