title: How to calculate round on very large array of double in C#
body: <p>In C# I have an array of double (<code>double[]</code> I mean)
  I want to round all values to two decimal places in C#.</p>
  
  <p>One solution is to do this with <code>foreach()</code> and <code>Math.Round()</code> functions
  but the array is very large (1.000.000 to 10.000.000 values)</p>
  
  <p>Instead of <code>foreach</code>, is there a more efficient solution?</p>