What does the Average Directional Index (ADX) measure in technical analysis?

According to the Alligator Indicator, what does it signify when all three moving averages are intertwined or flat?

What is the primary function of the Aroon indicator?

What does the Average True Range (ATR) indicator measure?

How are the ATR bands calculated in technical analysis?

What is the main purpose of the Supertrend indicator?

How is the Volume Weighted Average Price (VWAP) calculated?