An Expert Advisor opens position using two MACD indicators. It reverts the position in the case of loss. It uses a martingale with the limited number of doublings. The doublings can be disabled.
Translated from Russian by MetaQuotes Software Corp.
Original code: https://www.mql5.com/ru/code/186
The indicator allows to perform any arithmetic action with prices of two symbols and plot result on any other chart. It allows to calculate crosses (using multiplication and division), spread (subtract) or just to plot the other symbol's data on the chart.Price Channel
There is a Price Channel indicator, but I don't like it, because it fills all the space between the upper and lower boundaries. This version of Price Channel looks like in MetaTrader 4.