C# Math Round(Double, Int32)

Description

Math Round(Double, Int32) rounds a double-precision floating-point value to a specified number of fractional digits.

Syntax

Math.Round(Double, Int32) has the following syntax.

public static double Round(
  double value,
  int digits
)

Parameters

Math.Round(Double, Int32) has the following parameters.

• value - A double-precision floating-point number to be rounded.
• digits - The number of fractional digits in the return value.

Returns

Math.Round(Double, Int32) method returns The number nearest to value that contains a number of fractional digits equal to digits.

Example

The following code shows how to use Math.Round(Double, Int32) method.

using System;/* w w  w. j av  a  2s  .  c o m*/

public class Example
{
   public static void Main()
   {
      double[] values = { 2.125, 2.135, 2.145, 3.125, 3.135, 3.145 };
      foreach (double value in values)
         Console.WriteLine("{0} --> {1}", value, Math.Round(value, 2));

   }
}

The code above generates the following result.