# abs()

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Anonymous contributor
Published Oct 27, 2023
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The `abs()` method in Kotlin’s `math` library is used to calculate the absolute value of a numeric expression. The absolute value is the non-negative value of a number, effectively removing its negative sign, if present.

## Syntax

``````math.abs(n)
``````

`n`: A numeric expression (e.g., `Int`, `Long`, `Double`, `Float`). The method takes the numeric expression `n` as its argument and returns the absolute value, ensuring that the result is always a non-negative value.

## Example

In this example, the `abs()` function is imported from the `kotlin.math` library and employed to calculate the absolute values of different numeric expressions. The results are subsequently printed to the console.

```import kotlin.math.abs
fun main() {  val x = -6.5  val y = 2  val z = -340.8
val absoluteX = abs(x)  val absoluteY = abs(y)  val absoluteZ = abs(z)  println("Absolute value of x: \$absoluteX")  println("Absolute value of y: \$absoluteY")  println("Absolute value of z: \$absoluteZ")}
```

The output of this code will be:

```Absolute value of x: 6.5Absolute value of y: 2Absolute value of z: 340.8
```

Note: The `abs()` method is useful when ensuring that a value is treated as positive, irrespective of its original sign.