Pine Script Operators

Operators in Pine Script

Operators allow you to perform calculations, make comparisons, and combine conditions. This guide covers all operators in Pine Script.

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Arithmetic Operators

Basic Math

//@version=6
indicator("Arithmetic Operators")
 
// Addition
sum = 10 + 5  // 15
 
// Subtraction
diff = 10 - 5  // 5
 
// Multiplication
product = 10 * 5  // 50
 
// Division
quotient = 10 / 5  // 2
 
// Modulo (remainder)
remainder = 10 % 3  // 1
 
plot(sum)
plot(diff)
plot(product)
plot(quotient)

Practical Example: Average Price

//@version=6
indicator("Typical Price")
 
typicalPrice = (high + low + close) / 3
plot(typicalPrice, title="Typical Price", color=color.blue)

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Comparison Operators

Used to compare values:

//@version=6
indicator("Comparison Operators")
 
price = close
 
// Greater than
isAbove = price > 100
 
// Less than
isBelow = price < 100
 
// Greater than or equal
isAboveOrEqual = price >= 100
 
// Less than or equal
isBelowOrEqual = price <= 100
 
// Equal
isEqual = price == 100
 
// Not equal
isNotEqual = price != 100
 
plot(close)

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Logical Operators

Combine multiple conditions:

and

Returns true if both conditions are true:

//@version=6
indicator("AND Operator")
 
uptrend = close > ta.sma(close, 50)
bullishMomentum = close > close[1]
 
// Both conditions must be true
buySignal = uptrend and bullishMomentum
 
plotshape(buySignal, shape=shape.labelup, location=location.belowbar, color=color.green)

or

Returns true if either condition is true:

//@version=6
indicator("OR Operator")
 
oversoldRSI = ta.rsi(close, 14) < 30
oversoldStochastic = ta.stoch(14, 3, 3) < 20
 
// Either condition can be true
buySignal = oversoldRSI or oversoldStochastic
 
plotshape(buySignal, shape=shape.labelup, location=location.belowbar, color=color.green)

not

Negates a condition:

//@version=6
indicator("NOT Operator")
 
isGreen = close > open
isRed = not isGreen
 
plot(close)
plotshape(isRed, shape=shape.labeldown, location=location.abovebar, color=color.red)

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Ternary Operator (?:)

Conditional value selection:

//@version=6
indicator("Ternary Operator")
 
price = close
 
// If price > 100, use green; otherwise red
color condition = price > 100 ? color.green : color.red
 
plot(close, color=color)
 
// More complex example
sma20 = ta.sma(close, 20)
sma50 = ta.sma(close, 50)
 
trendColor = close > sma50 ? color.green : close > sma20 ? color.orange : color.red
 
plot(sma20, color=trendColor)
plot(sma50, color=color.gray)

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Comparison Functions

ta.crossover()

Returns true when series A crosses above series B:

//@version=6
indicator("Crossover")
 
fastMA = ta.sma(close, 12)
slowMA = ta.sma(close, 26)
 
goldenCross = ta.crossover(fastMA, slowMA)
 
plot(fastMA, color=color.green)
plot(slowMA, color=color.red)
plotshape(goldenCross, shape=shape.labelup, location=location.belowbar, color=color.green, text="GOLDEN CROSS")

ta.crossunder()

Returns true when series A crosses below series B:

//@version=6
indicator("Crossunder")
 
fastMA = ta.sma(close, 12)
slowMA = ta.sma(close, 26)
 
deathCross = ta.crossunder(fastMA, slowMA)
 
plotshape(deathCross, shape=shape.labeldown, location=location.abovebar, color=color.red, text="DEATH CROSS")

ta.highest() / ta.lowest()

Find highest/lowest values:

//@version=6
indicator("Highest/Lowest")
 
period = input.int(20, "Period")
 
highestPrice = ta.highest(high, period)
lowestPrice = ta.lowest(low, period)
 
plot(highestPrice, color=color.green)
plot(lowestPrice, color=color.red)

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Math Functions

//@version=6
indicator("Math Functions")
 
price = close
 
// Absolute value
absValue = math.abs(-10)  // 10
 
// Square root
sqrtValue = math.sqrt(16)  // 4
 
// Power
powerValue = math.pow(2, 3)  // 8
 
// Round
roundValue = math.round(10.5)  // 11
 
// Floor (round down)
floorValue = math.floor(10.9)  // 10
 
// Ceiling (round up)
ceilValue = math.ceil(10.1)  // 11
 
// Min/Max
minValue = math.min(5, 10)  // 5
maxValue = math.max(5, 10)  // 10
 
plot(close)

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Practical Trading Examples

Example 1: Bollinger Band Touch

//@version=6
indicator("BB Touch")
 
length = input.int(20, "Length")
mult = input.float(2.0, "Multiplier")
 
basis = ta.sma(close, length)
dev = mult * ta.stdev(close, length)
upper = basis + dev
lower = basis - dev
 
touchUpper = high >= upper
touchLower = low <= lower
 
plot(upper, color=color.red)
plot(basis, color=color.orange)
plot(lower, color=color.green)
 
plotshape(touchUpper, location=location.abovebar, shape=shape.labeldown, color=color.red, text="SELL")
plotshape(touchLower, location=location.belowbar, shape=shape.labelup, color=color.green, text="BUY")

Example 2: Moving Average Trend

//@version=6
indicator("MA Trend")
 
sma20 = ta.sma(close, 20)
sma50 = ta.sma(close, 50)
sma200 = ta.sma(close, 200)
 
strongUptrend = close > sma200 and sma200 > sma200[1] and sma50 > sma50[1]
weakUptrend = close > sma200 and sma50 > sma50[1]
 
trend = strongUptrend ? "STRONG" : weakUptrend ? "WEAK" : "DOWNTREND"
 
plot(sma20, color=color.green)
plot(sma50, color=color.orange)
plot(sma200, color=color.red)
 
plotchar(strongUptrend, char="▲", color=color.lime, location=location.belowbar, size=size.tiny)
plotchar(weakUptrend and not strongUptrend, char="△", color=color.green, location=location.belowbar, size=size.tiny)

Example 3: RSI Overbought/Oversold

//@version=6
indicator("RSI Zones")
 
rsi = ta.rsi(close, 14)
 
oversold = rsi < 30
overbought = rsi > 70
neutral = rsi >= 30 and rsi <= 70
 
rsiColor = overbought ? color.red : oversold ? color.green : color.blue
 
plot(rsi, color=rsiColor, linewidth=2)
hline(70, color=color.red, linestyle=hline.style_dashed)
hline(30, color=color.green, linestyle=hline.style_dashed)
hline(50, color=color.gray, linestyle=hline.style_dashed)
 
bgcolor(overbought ? color.new(color.red, 90) : oversold ? color.new(color.green, 90) : na)

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Operator Precedence

Order of operations (highest to lowest):

1. () - Parentheses
2. ^ - Exponentiation
3. * / % - Multiplication/Division/Modulo
4. + - - Addition/Subtparison
5. > < >= <= - Comparison
6. == != - Equality
7. not - Logical NOT
8. and - Logical AND
9. or - Logical OR

// Without parentheses
result = 10 + 5 * 2  // 20 (multiplication first)
 
// With parentheses
result = (10 + 5) * 2  // 30 (addition first)

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Next Steps

• functions - Learn to use and create functions
• inputs - User input handling
• moving-averages - Build your first real indicator

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Quick Reference

Operator	Symbol	Example
Add	+	a + b
Subtract	-	a - b
Multiply	*	a * b
Divide	/	a / b
Modulo	%	a % b
Greater	>	a > b
Less	<	a < b
Equal	==	a == b
And	and	a and b
Or	or	a or b
Not	not	not a
Ternary	? :	a ? b : c

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Operators are the building blocks of all Pine Script logic.