Hi Guys.. As per 3 ema strategy, on 28/06/2013 the 3 ema was 5743 and on 28/06/2013 it has not touched 3 ema..and can we calculate 3 ema of today at 3.20pm and if it hasnt touched, we can initiate a small short in nifty... But i dont know how to calculate 3 ema... Need seniors advice