Solutions

The following sections describe solutions to the preceding problems. You can download the example solutions to see additional details and to experiment with the programs at
https://github.com/PacktPublishing/The-Modern-CSharp-Challenge/tree/master/Chapter02.

20. Monte Carlo π

The following code uses a Monte Carlo algorithm to estimate π:

// Use Monte Carlo simulation to estimate pi.
private double MonteCarloPi(long numPoints)
{
    Random rand = new Random();

    // Make a bitmap to show points.
    int wid = pointsPictureBox.ClientSize.Width;
    int hgt = pointsPictureBox.ClientSize.Height;
    Bitmap bm = new Bitmap(wid, hgt);
    using (Graphics gr = Graphics.FromImage(bm))
    {
        gr.Clear(Color.White...