EMA 8 & 21, SMA 20 & 50

The script plots two Exponential Moving Averages (EMA) and two Simple Moving Averages (SMA) to help traders analyze market trends. The 8-period and 21-period EMAs (yellow and white) track short-term momentum, while the 20-period and 50-period SMAs (blue and purple) provide insights into longer-term trends and key support/resistance levels.