-
Recent Posts
-
Recent Comments
Archives
- March 2021
- February 2021
- January 2021
- December 2020
- November 2020
- October 2020
- September 2020
- August 2020
- July 2020
- June 2020
- May 2020
- April 2020
- March 2020
- February 2020
- January 2020
- December 2019
- November 2019
- October 2019
- September 2019
- August 2019
- July 2019
- June 2019
- May 2019
- April 2019
- March 2019
- February 2019
- January 2019
- December 2018
- November 2018
- October 2018
- September 2018
- August 2018
- July 2018
- June 2018
- May 2018
- April 2018
- March 2018
- February 2018
- January 2018
- December 2017
- November 2017
- October 2017
- September 2017
- August 2017
- July 2017
- June 2017
- May 2017
- April 2017
- March 2017
- February 2017
- January 2017
- December 2016
- November 2016
- October 2016
- September 2016
- August 2016
- July 2016
- June 2016
- May 2016
- April 2016
- March 2016
- February 2016
- January 2016
- December 2015
- November 2015
- October 2015
- September 2015
- August 2015
- July 2015
- June 2015
- May 2015
- April 2015
- March 2015
- February 2015
- January 2015
- December 2014
- November 2014
- October 2014
- September 2014
- August 2014
- July 2014
- June 2014
- May 2014
- February 2014
- January 2014
- December 2013
- October 2013
- August 2013
- June 2013
- December 2012
- September 2012
- July 2012
- June 2012
- November 2011
- May 2011
- April 2011
- February 2011
- December 2010
Categories
- .NET
- 3D
- 3D graphics
- ADO.NET
- algorithms
- animation
- API
- arrays
- attributes
- audio
- books
- C#
- C# programming
- calculations
- challenges
- classes
- clipboard
- coding
- combinatorics
- console
- controls
- cryptography
- curve fitting
- database
- debugging
- dialogs
- directories
- Drag and Drop
- drawing
- drawings
- enums
- Event
- events
- example program
- Excel
- extension methods
- extensions
- files
- finance
- fonts
- formatting
- forms
- fractals
- ftp
- games
- GDI+
- generic
- geometry
- globalization
- graphics
- html
- IDE
- image processing
- inheritance
- interfaces
- internationalization
- internet
- interoperability
- LINQ
- lists
- localization
- mathematics
- memory
- menus
- MessageBox
- methods
- miscellany
- multimedia
- network
- Office
- OOP
- operators
- parsing
- performance
- phone
- PowerPoint
- printers
- printing
- productivity
- programs
- puzzles
- recursion
- reflection
- registry
- regular expressions
- serialization
- settings
- SQL
- stories
- strings
- syntax
- system
- threading
- three-dimensional graphics
- tips
- tools
- transformations
- Uncategorized
- user interface
- variables
- VBA
- web
- Windows Forms programming
- WMI
- Word
- wpf
- XAML
- XML
Meta
Category Archives: algorithms
Graph the gamma function in C#
The post Calculate the gamma function in C# uses numerical integration to calculate the gamma function. (See my book Essential Algorithms, Second Edition for information on numerical integration.) That method works fairly well for calculating Γ(x) where x ≤ 1. … Continue reading
Posted in algorithms, graphics, mathematics
Tagged algorithms, C#, C# programming, example, example program, gamma function, graphics, mathematics, Windows Forms programming
Leave a comment
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
1 Comment
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
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
Leave a comment
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
6 Comments
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
Brighten pixels in an image in C#
Sometimes when I take a picture, the poor lighting makes some pixels come out less brightly than I would like. For example, in the picture on the right the red raspberries aren’t very red. This example lets you brighten pixels. … Continue reading
Posted in algorithms, graphics, image processing
Tagged algorithms, brighten pixels, C#, C# programming, example, example program, graphics, image processing, Windows Forms programming
1 Comment
Perform binary contrast enhancement more quickly in C#
The example Perform binary contrast enhancement interactively in C# lets you convert an image into completely black and white pixels depending on their brightness. Pixels that are brighter than a given cutoff value are converted into white. Those that are … Continue reading
Make a blended composite image in C#
The other day I wanted to do something that all of us do from time to time: make a composite image with the Eye of Sauron on top of another picture. This turned out to be a bit more complicated … Continue reading