The real author:
The entropy is the system disorder measure. The indicator applies one of the methods of random sample entropy calculation.
The NumBars setting parameter is the width of the window or the period of the indicator what is more accustomed for trader:
input uint numbars=12; //period of averaging
The final indicator by its properties resembles the MACD histogram. This indicator was first implemented in MQL4 and published in Code Base on 05.07.2008. The source code of this script is shown on link.
Fig.1 The EntropyMath indicator
Translated from Russian by MetaQuotes Software Corp.
Original code: https://www.mql5.com/ru/code/1696
The Acceleration/Deceleration Indicator (AC) measures acceleration and deceleration of the current driving force.Average Directional Movement Index (ADX)
The Average Directional Movement Index Indicator (ADX) helps to determine if there is a price trend.