This is the symbol for the order of a difference equation. It refers to the maximum number of points back in a filter (or lags) that are used. In the case of a digital filter, it usually refers to the number of elements in the filter.
This is the symbol for the order of a difference equation. It refers to the maximum number of points back in a filter (or lags) that are used. In the case of a digital filter, it usually refers to the number of elements in the filter.
The symbol \(M\) represents the order of a difference equation. It refers to the maximum number of points back in a filter (or lags) that are used. In the case of a digital filter, it usually refers to the number of elements in the filter.