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Old 02-26-2009, 09:39 AM   #10 (permalink)
kannan
 
Join Date: Feb 2009
Location: India
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Default Abt EMA calculation
EMA(current) = ( (Price(current) - EMA(prev) ) x Multiplier) + EMA(prev)
For a percentage-based EMA, "Multiplier" is equal to the EMA's specified percentage. For a period-based EMA, "Multiplier" is equal to 2 / (1 + N) where N is the specified number of periods.
For example, a 10-period EMA's Multiplier is calculated like this:
(2 / (Time periods + 1) ) = (2 / (10 + 1) ) = 0.1818 (18.18%)
This means that a 10-period EMA is equivalent to an 18.18% EMA.


this was what i received from my friend.. this is correct and i tested.. but how did the Multiplier (i mentiond in bold letters) is equel to "2/(1+N)" pls explain the calculation
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