EMA13-EMA21 Difference Indicator

# EMA13-EMA21 Difference Indicator

## Description

This indicator calculates the difference between the 13-period Exponential Moving Average (EMA13) and the 21-period Exponential Moving Average (EMA21), helping traders visually assess short-term market momentum.

**Core Logic:**
- When the difference is positive (green), the short-term EMA is above the long-term EMA, indicating a bullish trend
- When the difference is negative (red), the short-term EMA is below the long-term EMA, indicating a bearish trend
- Crossovers of the zero line can serve as potential trend reversal signals

**Use Cases:**
- Trend direction identification
- Momentum strength analysis
- Entry and exit timing assistance

**Disclaimer:**
This indicator is for reference only. It is recommended to combine it with other technical analysis tools for comprehensive judgment. This does not constitute investment advice.