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Docs/Samples/SMA.md

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+# SMA
+
+Simple Moving Average
+
+[Resource 1](https://www.investopedia.com/terms/s/sma.asp)
+
+A simple moving average (SMA) calculates the average of a selected range of prices, usually closing prices, by the number of periods in that range.
+
+Simple moving averages calculate the average of a range of prices by the number of periods within that range.
+A simple moving average is a technical indicator that can aid in determining if an asset price will continue or if it will reverse a bull or bear trend.
+A simple moving average can be enhanced as an exponential moving average (EMA) that is more heavily weighted on recent price action.
+
+## Formula
+
+SMA = (A1 + A2 + ... + An) / n
+
+An = price of an asset at period n
+n = the number of total periods
+
+[Tutorial](https://mql4tutorial.com/mql4-tutorial-english/mql4-tutorial-basics-11-how-to-calculate-a-simple-moving-average)
+
+```mq4
+double sma = iMA(_Symbol, _Period, numOfCandles, 0, MODE_SMA, PRICE_CLOSE, 0)
+```
+
+## Calculation process
+
+```pine
+pine_sma(source, length) =>
+    sum = 0.0
+    for i = 0 to length - 1
+        sum += source[i] / length
+    sum
+
+plot(pine_sma(close, 15))
+```