Lines of Gann Fan are built at different angles from an important base or peak at the price chart. The trend line of 1х1 was considered by Gann the most important. If the price curve is located above this line, it is the indication of the bull market, if it is below this line it is that of the bear market. Gann thought that the ray of 1x1 is a powerful support line when the trend is ascending, and he considered the breaking this line as an important turn signal. Gann emphasized the following nine basic angles, the angle of 1x1 being the most important of all:
1х8 — 82.5 degree
1х4 — 75 degree
1х3 — 71.25 degree
1х2 — 63.75 degree
1х1 — 45 degree
2х1 — 26.25 degree
3х1 — 18.75 degree
4х1 — 15 degree
8х1 — 7.5 degree
Refer to the Figure below.