What is Math.sqrt() in Scala?

The sqrt() function returns the square root of a number sent as a parameter.

Figure 1 below shows the mathematical representation of the sqrt() function.

Figure 1: Mathematical representation of the sqrt() function

The following module is required for this function:

import scala.math._

Syntax

Double sqrt(Double number)

Parameter

This function requires a number as a parameter.

Return value

  • If the input is a valid positive double number, then the square root of the number sent as a parameter is returned.
  • If the parameter value is positive infinity, then it returns positive infinity.
  • If the parameter value is NaN, less than zero, or negative infinity, then it returns NaN.

Example

import scala.math._
object Main extends App {
    //positive number
    println(s"The value of sqrt(10) = ${sqrt(10)}"); 
    println(s"The value of sqrt(0) = ${sqrt(0)}"); 
    println(s"The value of sqrt(4) = ${sqrt(4)}"); 
    //error outputs
    println(s"The value of sqrt(Double.PositiveInfinity) = ${sqrt(Double.PositiveInfinity)}");
    println(s"The value of sqrt(Double.NegativeInfinity) = ${sqrt(Double.NegativeInfinity)}");
    println(s"The value of sqrt(Double.NaN) = ${sqrt(Double.NaN)}");
    println(s"The value of sqrt(-1) = ${sqrt(-1)}"); 
    
}
Free AI Mock Interviews
Coding Interview
Coding PatternsFree Interview
Gain insights and practical experience with coding patterns through targeted MCQs and coding problems, designed to match and challenge your expertise level.
System Design
You TubeFree Interview
Learn to design a video streaming platform like YouTube by tackling functional and non-functional requirements, core components, and high-level to detailed design challenges.

Free Resources

License: Creative Commons-Attribution-ShareAlike 4.0 (CC-BY-SA 4.0)