first, let me confirm this....
in RSI, only the period has to be specified... 9 or 14 or whatever... let's take RSI (14) for eg.
now, there are no two methods of calculating RSI (14)... it will have one common result... there's no simple moving average method or exponential moving average method for calculating RSI (relative strength index)
Now, that GREEN line is RSI (14) and not SMA (14)
RSI and other prize indicators uses price movements of past period,
100
RSI = 100 - --------
1 + RS
RS = Average Gain / Average Loss
Average Gain = [(previous Average Gain) x 13 + current Gain] / 14
First Average Gain = Total of Gains during past 14 periods / 14
Average Loss = [(previous Average Loss) x 13 + current Loss] / 14
First Average Loss = Total of Losses during past 14 periods / 14
Note: "Losses" are reported as positive values.
now is sma rsi 14 its usual stuff, and in ema rsi we have a importance of last 2 days
hope its clear