In this article, we’ll dive deep into how to use `math.abs()`

in Pine Script version 5, including its syntax, applications, and a practical example to solidify your understanding.

#### Syntax of `math.abs()`

The syntax for `math.abs()`

is straightforward:

absValue = math.abs(x)

Here, `x`

is the number (integer or float) of which you want to find the absolute value. The function returns the absolute value of `x`

, effectively removing any negative sign.

#### Practical Example

To illustrate the use of `math.abs()`

, let’s create a simple script that highlights price differences exceeding a specified threshold. This example will modify variable names for uniqueness and demonstrate how to apply the `math.abs()`

function.

//@version=5 indicator("Price Difference Highlighter", overlay=true) thresholdValue = input(5.0, title="Threshold Value") // Calculating the absolute difference between the current close and the previous close priceDifference = math.abs(close - close[1]) // Plotting a shape if the price difference exceeds the threshold value plotshape(series=priceDifference > thresholdValue, location=location.belowbar, color=color.red, style=shape.triangleup, size=size.small, title="Significant Price Difference")

### Walkthrough of Each Line

Specifies that this script is written for Pine Script version 5, ensuring compatibility with the latest features and syntax.`//@version=5`

:Declares a new indicator with the name “Price Difference Highlighter”. The`indicator(...)`

:`overlay=true`

parameter indicates that this indicator will be drawn directly on the price chart, rather than in a separate pane below it.Creates an input field for the user to specify a threshold value. The default value is set to 5.0. This value will be used to determine what constitutes a significant price difference.`input(5.0, title="Threshold Value")`

:Calculates the absolute value of the difference between the current closing price (`priceDifference = math.abs(close - close[1])`

:`close`

) and the closing price of the previous bar (`close[1]`

). This calculation finds the magnitude of the price change without regard to direction (up or down).This function is used to plot shapes on the chart based on a specified condition. The condition here is`plotshape(...)`

:`priceDifference > thresholdValue`

, meaning a shape will be plotted whenever the price difference exceeds the user-defined threshold.The series parameter is the condition under which the shape will be plotted. If true, the shape is plotted for that bar.`series=priceDifference > thresholdValue`

:Specifies that the shape should be plotted below the bar.`location=location.belowbar`

:Sets the color of the shape to red.`color=color.red`

:`style=shape.triangleup`

: Chooses the upward-pointing triangle as the shape to plot.Defines the size of the plotted shape as small.`size=size.small`

:Gives a title to this particular plot, which can be seen in the indicator’s settings and legend.`title="Significant Price Difference"`

:

#### Key Features and Takeaways

**Function Usability:**`math.abs()`

is useful for scenarios where you need to normalize negative values, especially when calculating price differences, deviations, or other financial metrics that require positive values for comparison.**Syntax and Application:**The function requires a single argument and returns the absolute value, making it straightforward to integrate into various calculations and conditions within your scripts.**Versatility:**This function can be applied in a wide range of trading strategies and indicators, from volatility measurements to custom oscillators, by providing a simple way to handle negative numbers.