# Overview

The **`nextUp()` method** is a static method in the `math` package that returns the floating-point number adjacent to the first argument towards the direction of the positive infinity.

Scala internally uses Java implementations of the corresponding methods. This method internally invokes [nextUp()](https://www.educative.io/answers/what-is-mathnextup-in-java) method in Java.

## Syntax

```
math.nextUp(x)
```

## Parameters

- `x`: The starting floating point or a double number.


## Return value

The method returns the nearest floating-point/double number in the direction of positive infinity adjacent to the given number.

## Example

import scala.math

object Main extends App {
    val x: Double = 43.12 
    println(s"starting point - ${x}")
    val newNum = Math.nextUp(x)
    println(s"Number adjacent to ${x} towards positive infinity - ${newNum}")
}


## Explanation

- Line 6: The following value after `x` in the direction of positive infinity is obtained by invoking the `nextUp()` method. The value returned is stored in `newNum.`
- Line 7: Print the `newNum.`

What is nextUp() in Scala?

Returns the nearest floating-point number towards positive infinity.