Category Archives: algorithms

Pingback: Code Project post “Orbital Mechanics Introduction, Part 2”

Posted on January 24, 2019 by RodStephens

The Code Project post Orbital Mechanics Introduction, Part 2 by charles922 uses some code from my WPF 3D posts. His program lets you experiment with the following orbital parameters: Eccentricity – the eccentricity of the orbit’s ellipse. Inclination – the … Continue reading →

Posted in 3D, 3D graphics, algorithms, books, drawing, graphics, mathematics, wpf, XAML | Tagged 3D, 3D graphics, algorithms, books, C#, C# programming, drawing, example, example program, graphics, mathematics, three-dimensional graphics, Windows Forms programming, WPF, XAML | Leave a comment

Winners of the book drawing

Posted on January 19, 2019 by RodStephens

Congratulations to the following winners of the book drawing for copies of The Modern C# Challenge. Josh Williams Tony Ropson Richard Moss Mark Williamson William Cruz Stephen Igor Kuzmishov Paolo Mike Griffiths Francisco Javier López Manzano If you didn’t win, … Continue reading →

Posted in algorithms, books | Tagged algorithms, book drawing, books, C#, C# programming, example, example program, The Modern C# Challenge, Windows Forms programming | Leave a comment

Why you should study algorithms (plus a free book drawing)

Posted on January 17, 2019 by RodStephens

There are several reasons why you should study algorithms. I’m going to talk about four of them. (If you want to skip to the bottom, you can read about the drawing I’m having in the next few days for one … Continue reading →

Posted in 3D graphics, algorithms, books, graphics | Tagged 3D graphics, algorithms, books, C#, C# programming, example, example program, graphic, learning, Windows Forms programming | Leave a comment

Book Drawing: The Modern C# Challenge

Posted on January 11, 2019 by RodStephens

I’m holding a drawing for 10 copies of my latest book, The Modern C# Challenge. Here’s the short blurb about this book. The Modern C# Challenge Become an expert C# programmer by solving interesting programming problems This book includes 100 … Continue reading →

Posted in algorithms, books | Tagged algorithms, book drawing, books, C#, C# programming, example, example program, The Modern C# Challenge, Windows Forms programming | 1 Comment

Draw a randomly colored Sierpinski octagon in C#

Posted on December 8, 2018 by RodStephens

This example draws a randomly colored Sierpinski octagon. It’s basically the same as the example Draw a randomly colored Sierpinski pentagon in C# except it draws an octagon instead of a pentagon. See that example for most of the details. … Continue reading →

Posted in algorithms, fractals, graphics, recursion | Tagged C#, C# programming, drawing, example, example program, fractals, graphics, recursion, Sierpinski, Sierpinski octagon, Windows Forms programming | Leave a comment

Gary Beene’s gbUnSnarl game

Posted on November 23, 2018 by RodStephens

Check out Gary Bene’s gbUnSnarl game. Your job is to drag the nodes in a network to unsnarl it. Basically it asks you to find a way to rearrange a planar network so none of its edges intersect. Algorithms to … Continue reading →

Posted in algorithms, games | Tagged algorithms, C#, C# programming, example, example program, games, network algorithms, snarl, Windows Forms programming | Leave a comment

Find happy numbers in C#

Posted on November 14, 2018 by RodStephens

Before I show you the code, let me explain what happy numbers are. Happy Numbers To find happy numbers, start with any integer. Replace it with the sum of the squares off its digits. Repeat the process until the numbers … Continue reading →

Posted in algorithms, mathematics | Tagged algorithms, C#, C# programming, example, example program, happy numbers, mathematics, Windows Forms programming | Leave a comment

Draw words on a circle in WPF and C#

Posted on November 8, 2018 by RodStephens

This example shows one way that you can draw words on a circle in WPF. Note that it does not show how to draw words where each character is rotated to follow the circle’s curve. Each word is rotated as … Continue reading →

Posted in algorithms, graphics, mathematics | Tagged algorithms, C#, C# programming, circle text, draw words, example, example program, graphics, mathematics, Windows Forms programming | Leave a comment

Draw a hyperbolic spiral in C#

Posted on November 6, 2018 by RodStephens

A hyperbolic spiral, which is also called an reciprocal spiral, is the inverse of an Archimedes spiral. It uses the equation r = A / θ to generate points on a spiral. This spiral has a couple of interesting properties. … Continue reading →

Posted in algorithms, graphics, mathematics | Tagged algorithms, Archimedes spiral, C#, C# programming, example, example program, graphics, mathematics, spiral, Windows Forms programming | Leave a comment

Draw a logarithmic spiral in C#

Posted on November 1, 2018 by RodStephens

The post Draw an Archimedes spiral in C# uses the equation r = A˙θ to generate the points on a spiral. This example is almost exactly the same except it uses the equation to r = A˙eB˙θ to generate its … Continue reading →