Parameters

d

A double .

Returns

A double whose value is indicated as follows:

Condition	Returns
d >= 0	A double containing the positive square root of d.
d < 0 d is equal to double.NegativeInfinity. d is equal to double.NaN.	double.NaN.
d is equal to double.PositiveInfinity	double.PositiveInfinity.

Remarks

Documentation for this section has not yet been entered.

Example

The following example demonstrates using the Math.Sqrt(double) method.

C# 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);

   }

}

The output is

Math.Sqrt(16.0) returns 4
Math.Sqrt(0.0) returns 0
Math.Sqrt(-10.0) returns NaN

Requirements

Namespace: System
Assembly: mscorlib (in mscorlib.dll)
Assembly Versions: 1.0.5000.0, 2.0.0.0