Introduction
Fourier analysis is a mathematical approach to decompose a general and complicated function into frequency components. This technique is proven to be useful in situations that have a waveform structure, such as musical chord into terms of the intensity of its constituent pitches.
In financial market, there are existing literature such as Elliott Wave Theory, attempting to model a price series as different wave forms. The fourier transformation is believed to be a more scientific and mathematical approach. Given 2 simple input parameters, it will easily estimate and output the range of future price movement.