Parameters

d

The number whose square root is to be found.

Returns

One of the values in the following table.

Zero or positive	The positive square root of d.
Negative	double.NaN
Equals double.NaN	double.NaN
Equals double.PositiveInfinity	double.PositiveInfinity

Remarks

Example

using System;

public class MathSqrtExample
{

   public static void Main()
   {

      Double d1 = Math.Sqrt(16.0);
      Double d2 = Math.Sqrt(0.0);
      Double d3 = Math.Sqrt(-10.0);
      Console.WriteLine("Math.Sqrt(16.0) returns {0}", d1);
      Console.WriteLine("Math.Sqrt(0.0) returns {0}", d2);
      Console.WriteLine("Math.Sqrt(-10.0) returns {0}", d3);

   }

}

Requirements