Gann Square of 9 

The Square of 9 is basically a spiral of numbers. The initial value can be found in the center of the spiral.  This value is then increased by moving in a spiral form. Normally the center value is 1 and the step is one creating the spiral shown below.

The numbers that represent a complete turn (0 or 360 degrees) are 2,11,28,53.....
The numbers that represent 1/8 of a turn (45 degrees) are 3,13,31.....
The numbers that represent 1 quarter of a turn (90 degrees) are 4,15,34.....
The numbers that represent a half turn (180 degrees) are 6,19,40.....

The start value is the value where you click the mouse on the chart,  you can change the step value in the parameter window as shown on the Gann SQ9 Parameters picture to the left. You can also select the angles where the price lines and time lines will be plotted, the direction of the plot, and the color and thickness of the lines.

Another way to find a value from a point is to first find the factor for the movement, a complete turn for a factor is 2, 7/8 of a turn or 315 degrees the factor is 1.75, 3/4 of a turn or 270 degrees the factor if 1.5, 225 degrees the factor is 1.25, 180 degrees the factor is 1...., for 45 degrees the factor is 0.25.
For example, choose a start number (for example 40), take its square root (in this case 6.3245), add the factor to go forward or subtract the factor to go backwards.  If you want to go forward 225 degrees from 40 we need to add 1.25 to 6.3245 which gives you 7.5745 and then re-square (7.5745^2 = 57.37).  57 is the number 225 degrees forward from the number 40.


 This second way is active when you have the option 'Use square formula' checked.


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