What is Math.Sqrt() in C#?

C# has a built-in Math class that provides useful mathematical functions and operations. The Math class has the Sqrt() function, which is used to compute the square root of a specified number.

Syntax

public static double Sqrt (double value);

Parameters

  • value: value is of the Double type and represents the input value for which we have to find Sqrt(). Its range is all double numbers.

Return value

  • Double: Sqrt() returns a Double number representing the square root of the value.
  • NaN: Sqrt() returns NaN type for negative numbers or NaN input in value.
  • PositiveInfinity: Sqrt() returns PositiveInfinity for the PositiveInfinity input in value.

Example

using System;
class Educative
{
    static void Main()
    {
        Double result = Math.Sqrt(-0.16);
        System.Console.WriteLine("Sqrt(0.16) = "+ result);
        Double result1 = Math.Sqrt(0);
        System.Console.WriteLine("Sqrt(0) = "+ result1);
        Double result2 = Math.Sqrt(16);
        System.Console.WriteLine("Sqrt(16) = "+ result2);
        Double result3 = Math.Sqrt(Double.PositiveInfinity);
        System.Console.WriteLine("Sqrt(∞) = "+ result3);
        Double result4 = Math.Sqrt(Double.NegativeInfinity);
        System.Console.WriteLine("Sqrt(-∞) = "+ result4);
    }
}

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