The CDemaOnArray class is intended for calculation of DEMA (Double Exponential Moving Average) on an indicator buffer.
Double Exponential Moving Average Technical
Indicator (DEMA) was developed by Patrick Mulloy and published in
February 1994 in the "Technical Analysis of Stocks & Commodities"
magazine. It is used for smoothing price series and is applied directly
on a price chart of a financial security. Besides, it can be used for
smoothing values of other indicators.