# TRIX - Triple Exponential Moving Average
#### Description
Jack Hutson developed this TRIX indicator, which is a 1-day rate-of-change indicator. What this means is that day 2 is divided by day 1, day 3 by day 2 and so on and so forth, and this is then applied to a triple exponential moving average of the closing prices. This results in a zero line fluctuating oscillator which is used as trend indicator thanks to its stability.
#### Interpretation
A buy signal is created when the TRIX indicator crosses the zero line from bottom to top. A sell signal is generated when the zero line is broken in a downwards direction.
#### Usage
```csharp
TRIX(int period, int signalPeriod)
TRIX(IDataSeries inSeries, int period, int signalPeriod)
TRIX(int period, int signalPeriod)[int barsAgo]
TRIX(IDataSeries inSeries, int period, int signalPeriod)[int barsAgo]
//For the signal line
TRIX(int period, int signalPeriod).Signal[int barsAgo]
TRIX(IDataSeries inSeries, int period, int signalPeriod).Signal[int barsAgo]
```
#### Return value
**double**
When using this method with an index (e.g. **TRIX**(14, 3)\[**int** barsAgo] ), the value of the indicator will be issued for the referenced bar.
#### Parameters
inSeries Input data series for the indicator
period Number of bars included in the calculations
signal period Number of bars included in the signal line calculation
#### Visualization
#### Example
```csharp
//Output for the TRIX EMA
Print("The current TRIX value is " + TRIX(14, 3)[0]);
//Output for the TRIX signal line
Print("The current TRIX value is " + TRIX(14, 3).Signal[0]);
```