//@version=4 study(title="BUY SELL", overlay=true, resolution="") short = ema(close, 8) long = ema(close, 21) plot(short, color = color.red) plot(long, color = color.green) plotshape(crossover(short,long) , style = shape.triangleup , location = location.belowbar, color = color.green , size = size.normal) plotshape(crossunder(short,long), style =...