Whatever Price Range can be use to calculate an Octave and divided in 100 ths or 1000 ths
the initial use by Gann was to divide by 8 the price interval between a Top and a Low
the second and latest way was to use precalculated Range 0-1 / 0-10 / 0-100 etc which is more "stable" - you do not have to modify Range and Octave every time Price Action makes a new Low or a new Top.
The third way is mine. It is a variant of the second way. It depends on where you draw your Baseline (0/8)
A good example is the EURUSD ;
If you start from zero - Range is 0-2 - Octave = 2 / 8 = 0,25 (and harmonics)
but if you set your Baseline at 0,75 - historical Price Action fluctuates (up to now ) between 0,75 and 1,75.
Range is 1,75 - 0, 75 = 1
Octave is 1 / 8 = 0,125
Subharmonics are :
0,0625
0,03125
0,015625
0,007825
0,00390625
etc
the initial use by Gann was to divide by 8 the price interval between a Top and a Low
the second and latest way was to use precalculated Range 0-1 / 0-10 / 0-100 etc which is more "stable" - you do not have to modify Range and Octave every time Price Action makes a new Low or a new Top.
The third way is mine. It is a variant of the second way. It depends on where you draw your Baseline (0/8)
A good example is the EURUSD ;
If you start from zero - Range is 0-2 - Octave = 2 / 8 = 0,25 (and harmonics)
but if you set your Baseline at 0,75 - historical Price Action fluctuates (up to now ) between 0,75 and 1,75.
Range is 1,75 - 0, 75 = 1
Octave is 1 / 8 = 0,125
Subharmonics are :
0,0625
0,03125
0,015625
0,007825
0,00390625
etc
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