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Tag Archives: example program
Calculate the gamma function in C#
The gamma function, represented by the capital Greek letter gamma Γ, was derived by Daniel Bernoulli for complex numbers with a positive real part. The interesting thing about the gamma function is that &Gamma(n + 1) = n! for integers … Continue reading
Posted in algorithms, mathematics
Tagged algorithms, C#, C# programming, example, example program, gamma function, mathematics, Windows Forms programming
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Find rectangles defined by a side and aspect ratio in C#
You probably haven’t needed to make your program draw rectangles that are defined by specifying one of its sides. I haven’t either, but I want this for another program that I plan to write. Of course a single side isn’t … Continue reading
Posted in drawing, geometry, graphics
Tagged C#, C# programming, draw rectangles, drawing, example, example program, find rectangles, geometry, graphics, Windows Forms programming
3 Comments
Zip files with the ZipFile class in C#
The static ZipFile class is relatively new (.NET Framework 4.5 and later), so this example uses Visual Studio 2019. The following section explains how to load the ZipFile class in a Visual Studio 2019 project. The rest of this post … Continue reading
Posted in files
Tagged archive, C#, C# programming, compression, example, example program, files, Windows Forms programming, Zip, ZipFile
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Simulate a doubling betting strategy in C#
Casinos love customers who have a betting strategy because those customers always end up losing. As long as the game’s events are independent of each other (for example, one roll of the dice does not depend on the previous rolls), … Continue reading
Posted in algorithms, mathematics
Tagged algorithms, betting strategy, C#, C# programming, example, example program, mathematics, simulations, statistics, Windows Forms programming
1 Comment
Book Drawing: C++ All-in-One For Dummies, 4th Edition
John Mueller has kindly donated five copies of his book C++ All-in-One For Dummies, 4th Edition for me to give away. The only catch is that you should post a review on Amazon when you’ve had a chance to look … Continue reading
Posted in books
Tagged book drawing, books, C++, C++ programming, example, example program, Windows Forms programming
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Use k-means clustering to find clusters of data in C#
I was recently editing John Mueller and Luca Massaron’s book Machine Learning For Dummies, Second Edition. (This link is for the first edition. I’ll try to remember to update it when the new edition is available.) The book is about … Continue reading
Posted in algorithms
Tagged algorithms, C#, C# programming, clustering, clusters, example, example program, k-means clustering, Windows Forms programming
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Automatically set camera distance in WPF and C#
This example extends the post Build a geodesic sphere with WPF and C# to let you automatically set the camera distance to make the scene fill the viewport. Making a 3D scene fill the viewport nicely can be tricky. The … Continue reading
Posted in 3D graphics, algorithms, graphics, mathematics, wpf
Tagged 3D graphics, algorithms, C#, C# programming, camera distance, example, example program, geodesic, geodesic dome, geodesic sphere, graphics, icosahedrron, mathematics, platonic solids, triangles, Windows Forms programming, WPF
2 Comments
Make numbered buttons in C#
This program lets you create a sequence of images that look like numbered buttons. It’s another program that I seem to recreate periodically. Click the Background and Foreground color swatches to change those colors. Use the numeric up/down controls to … Continue reading
Posted in drawing, graphics, user interface
Tagged buttons, C#, C# programming, drawing, example, example program, graphics, numbered buttons, user interface, Windows Forms programming
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Enlarge a polygon that has colinear vertices in C#
The example Enlarge a polygon in C# shows how you can expand a polygon. The basic idea is to offset each of the polygon’s edges away from the polygon’s center and then see where adjacent edges intersect as shown in … Continue reading
Use the mouse wheel to scale images while cropping them to a desired aspect ratio in C#
This example adds mouse wheel support to the example Crop scaled images to a desired aspect ratio in C#. Some social media platforms work best with a 4:3 aspect ratio, so I use that example almost every day to crop … Continue reading
Posted in drawing, graphics, image processing
Tagged aspect ratio, C#, C# programming, drawing, example, example program, graphics, image processing, mouse wheel, Windows Forms programming
2 Comments