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The Modern C# Challenge

You're reading from   The Modern C# Challenge Become an expert C# programmer by solving interesting programming problems

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Product type Book
Published in Oct 2018
Publisher Packt
ISBN-13 9781789535426
Pages 362 pages
Edition 1st Edition
Languages
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Author (1):
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Rod Stephens Rod Stephens
Author Profile Icon Rod Stephens
Rod Stephens
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Toc

Table of Contents (17) Chapters Close

Title Page
Copyright and Credits
Dedication
Packt Upsell
Contributors
Preface
1. Mathematics FREE CHAPTER 2. Geometry 3. Dates and Times 4. Randomization 5. Strings 6. Files and Directories 7. Advanced C# and .NET Features 8. Simulations 9. Cryptography 1. Other Books You May Enjoy Index

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 athttps://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);
        gr.DrawEllipse(Pens.Black, 0, 0, wid - 1, hgt - 1);
    }

    // Make the random points.
    int numHits = 0;
    for (int i = 0; i < numPoints; i++)
    {
        // Make a random point 0 <= x < 1.
        double x = rand.NextDouble();
        double...
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