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BLOG.CSHARPHELPER.COM: Category Archive for algorithms

Draw text centered above and below a circle in C#

Posted by Rod Stephens at 8/19/2013 7:19 AM | Add Comment

BOOK DRAWING: Essential Algorithms (A Practical Approach to Computer Algorithms)

Posted by Rod Stephens at 8/16/2013 4:58 PM | Add Comment

Measure character positions when drawing a long string in C#

Posted by Rod Stephens at 8/16/2013 4:40 PM | Add Comment

Animate a point moving along a curve in polar coordinates in C#

Posted by Rod Stephens at 8/8/2013 8:37 AM | Add Comment

Graph a curve in polar coordinates in C#

Posted by Rod Stephens at 8/7/2013 9:05 AM | Add Comment

Fully justify paragraphs of text in C#

Posted by Rod Stephens at 7/9/2013 7:09 AM | Add Comment

Find the points of intersection between two conic sections selected by the user in C#

Posted by Rod Stephens at 6/29/2013 9:38 AM | Add Comment

Let the user select a conic section in C#

Posted by Rod Stephens at 6/28/2013 9:52 AM | Add Comment

Draw a conic section from its polynomial equation in C#

Posted by Rod Stephens at 6/24/2013 6:39 AM | Add Comment

Display a stacked graphic representation of compound interest in C#

Posted by Rod Stephens at 6/17/2013 6:19 AM | Add Comment

Display a graphic representation of compound interest in C#

Posted by Rod Stephens at 6/14/2013 10:23 AM | Add Comment

Find the points of intersection between a parabola and a hyperbola in C#

Posted by Rod Stephens at 6/10/2013 3:23 PM | Add Comment

Calculate the points where two ellipses intersect in C#, Part 4

Posted by Rod Stephens at 6/8/2013 9:38 AM | View Comments (2) | Add Comment

Calculate the points where two ellipses intersect in C#, Part 3

Posted by Rod Stephens at 6/7/2013 10:13 AM | Add Comment

Calculate the points where two ellipses intersect in C#, Part 2

Posted by Rod Stephens at 6/6/2013 9:25 AM | Add Comment

Calculate the points where two ellipses intersect in C#, Part 1

Posted by Rod Stephens at 6/5/2013 10:04 AM | Add Comment

Calculate the formula for an ellipse selected by the user in C#

Posted by Rod Stephens at 5/22/2013 3:12 PM | Add Comment

Calculate the formula for a circle selected by the user in C#

Posted by Rod Stephens at 5/21/2013 10:09 AM | Add Comment

How to extract only some of the information from a JSON file in C#

Posted by Rod Stephens at 5/15/2013 2:49 PM | Add Comment

Use JSON to serialize and deserialize objects in C#

Posted by Rod Stephens at 5/14/2013 3:19 PM | Add Comment

Apply a filter to make a color embossed image in C#

Posted by Rod Stephens at 4/7/2013 8:10 AM | Add Comment

Use branch and bound to recursively find the highest value path through a two-dimensional array of numbers in C#

Posted by Rod Stephens at 3/27/2013 8:32 AM | Add Comment

Recursively find the highest value path through a two-dimensional array of numbers in C#

Posted by Rod Stephens at 3/25/2013 9:59 AM | Add Comment

Draw a breadth-first colored binary tree in C#

Posted by Rod Stephens at 1/18/2013 6:57 AM | View Comments (2) | Add Comment

Draw a colored binary tree in C#

Posted by Rod Stephens at 1/17/2013 6:10 AM | Add Comment

Use statement lambdas in C#

Posted by Rod Stephens at 1/16/2013 6:26 AM | Add Comment

Use lambda expressions in C#

Posted by Rod Stephens at 1/15/2013 6:28 AM | Add Comment

Use anonymous methods in C#

Posted by Rod Stephens at 1/14/2013 6:43 AM | Add Comment

Use the predefined Action, Func, and EventHandler delegate types in C#

Posted by Rod Stephens at 1/11/2013 3:08 PM | Add Comment

Make a program that simulates rolling two 6-sided dice and compares the results to expected results in C#

Posted by Rod Stephens at 11/19/2012 3:00 PM | Add Comment

Calculate Fibonacci numbers in several ways in C#

Posted by Rod Stephens at 11/12/2012 9:35 PM | Add Comment

Use a cryptographic random number generator in C#

Posted by Rod Stephens at 11/7/2012 11:40 AM | Add Comment

Recursively draw equations in C#

Posted by Rod Stephens at 11/2/2012 3:19 PM | View Comments (2) | Add Comment

Use a for loop to recursively iterate over the items in an array with an unknown number of dimensions in C#

Posted by Rod Stephens at 10/30/2012 7:40 AM | Add Comment | Trackbacks

Warp images arbitrarily in C#, Part 2

Posted by Rod Stephens at 10/4/2012 12:31 PM | Add Comment

Warp images arbitrarily in C#

Posted by Rod Stephens at 10/2/2012 5:21 PM | View Comments (1) | Add Comment

Draw animated exploding 3-dimensional pie slices in C#

Posted by Rod Stephens at 9/28/2012 9:10 AM | Add Comment

Draw 3-dimensional pie slices in C#

Posted by Rod Stephens at 9/27/2012 8:21 AM | Add Comment

Calculate where a line segment and an ellipse intersect in C#

Posted by Rod Stephens at 9/24/2012 6:17 AM | Add Comment

Draw a pie chart with labels and annotations in C#

Posted by Rod Stephens at 9/18/2012 8:50 AM | Add Comment

Draw a labeled pie chart in C#

Posted by Rod Stephens at 9/17/2012 11:29 AM | Add Comment

Draw a pie chart in C#

Posted by Rod Stephens at 9/14/2012 9:30 AM | Add Comment

Initialize a Random object to produce a repeatable series of "random" numbers in C#

Posted by Rod Stephens at 9/10/2012 3:18 PM | Add Comment

Generate random polygons in C#

Posted by Rod Stephens at 8/29/2012 7:59 AM | Add Comment

Calculate the present value of a future amount of money in C#

Posted by Rod Stephens at 8/7/2012 7:43 AM | Add Comment

Add LINQ to the example that suggests words based on what the user is typing in C#

Posted by Rod Stephens at 8/1/2012 2:25 PM | Add Comment

Improve the example that suggests words based on what the user is typing in C#

Posted by Rod Stephens at 7/30/2012 8:45 AM | Add Comment

Suggest words based on what the user is typing as a smart phone does in C#

Posted by Rod Stephens at 7/27/2012 10:22 AM | Add Comment

Use the yield statement to make an enumeration in C#

Posted by Rod Stephens at 6/26/2012 7:08 AM | Add Comment

Use the Sieve of Eratosthenes to find prime numbers in a range in C#

Posted by Rod Stephens at 6/25/2012 2:56 PM | Add Comment

Compare sorting algorithms in C#, article 5 of 5

Posted by Rod Stephens at 6/22/2012 6:20 AM | Add Comment

Compare sorting algorithms in C#, article 4 of 5

Posted by Rod Stephens at 6/21/2012 6:17 AM | Add Comment

Compare sorting algorithms in C#, article 3 of 5

Posted by Rod Stephens at 6/20/2012 6:16 AM | Add Comment

Compare sorting algorithms in C#, article 2 of 5

Posted by Rod Stephens at 6/19/2012 6:12 AM | Add Comment

Compare sorting algorithms in C#, article 1 of 5

Posted by Rod Stephens at 6/18/2012 6:02 AM | View Comments (6) | Add Comment

Draw a star with a given number of points in C#

Posted by Rod Stephens at 6/4/2012 7:56 AM | Add Comment

Parse file sizes in KB, MB, GB, and so forth in C#

Posted by Rod Stephens at 6/1/2012 7:22 AM | Add Comment

Pixellate parts of an image in C#

Posted by Rod Stephens at 5/23/2012 7:29 AM | Add Comment

Draw a phi spiral (or golden spiral) in C#

Posted by Rod Stephens at 5/17/2012 7:19 AM | View Comments (3) | Add Comment

Use image processing techniques to pixellate an image and create other effects in C#

Posted by Rod Stephens at 5/16/2012 6:46 AM | Add Comment

Make a hangman game in C#

Posted by Rod Stephens at 4/19/2012 8:53 AM | Add Comment

Use LINQ to select specific words from a file to build a dictionary in C#

Posted by Rod Stephens at 4/18/2012 9:41 AM | Add Comment

Draw a nested series of golden rectangles in C#

Posted by Rod Stephens at 4/17/2012 5:36 PM | View Comments (2) | Add Comment

Examine the relationship between the Fibonacci sequence and phi in C#

Posted by Rod Stephens at 4/16/2012 9:02 AM | Add Comment

Make extension methods that randomize arrays and lists in C#

Posted by Rod Stephens at 4/4/2012 8:34 AM | Add Comment

Platonic Solids Part 4: The dodecahedron and icosahedron

Posted by Rod Stephens at 3/29/2012 6:50 AM | Add Comment

Platonic Solids Part 3: The cube and octahedron

Posted by Rod Stephens at 3/28/2012 7:20 AM | Add Comment

Platonic Solids Part 2: The tetrahedron

Posted by Rod Stephens at 3/27/2012 7:27 AM | Add Comment

Platonic Solids Part 1: What are the Platonic solids?

Posted by Rod Stephens at 3/26/2012 8:21 AM | Add Comment

Use "banker's rounding" and "normal" rounding in C#

Posted by Rod Stephens at 3/22/2012 1:45 PM | Add Comment

Make a game where you control a cannon ball's angle and speed to try to hit a house in C#

Posted by Rod Stephens at 3/9/2012 5:06 PM | Add Comment

Extract text created by DrawString from a metafile in C#

Posted by Rod Stephens at 2/24/2012 11:02 AM | Add Comment

Enumerate the records in a metafile and skip some in C#

Posted by Rod Stephens at 2/23/2012 9:32 AM | Add Comment

Use BeginInvoke and a callback to perform tasks asynchronously in C#

Posted by Rod Stephens at 2/22/2012 8:58 AM | Add Comment

Use BeginInvoke and EndInvoke to perform tasks asynchronously in C#

Posted by Rod Stephens at 2/21/2012 9:08 AM | Add Comment

Recursively perform red-eye reduction on a picture in C#

Posted by Rod Stephens at 2/17/2012 9:39 AM | Add Comment

Perform red-eye reduction on a picture in C#

Posted by Rod Stephens at 2/15/2012 9:56 AM | View Comments (1) | Add Comment

Use a scroll bar to change the cutoff value for binary contrast enhancement in C#

Posted by Rod Stephens at 2/14/2012 1:05 PM | Add Comment

Perform binary contrast enhancement on an image in C#

Posted by Rod Stephens at 2/13/2012 9:10 AM | Add Comment

Loop over the entries in an array without knowing how many dimensions the array has in C#

Posted by Rod Stephens at 2/6/2012 2:33 PM | View Comments (1) | Add Comment

Add "extension properties" to classes in C#

Posted by Rod Stephens at 1/31/2012 6:07 AM | Add Comment

Make stable appointment assignments based on customer preferences in C#

Posted by Rod Stephens at 1/30/2012 7:23 AM | Add Comment

Graph an equation entered by the user in C#

Posted by Rod Stephens at 1/24/2012 1:17 PM | Add Comment

Graph an equation y = F(x) in C#

Posted by Rod Stephens at 1/23/2012 8:49 AM | Add Comment

Evaluate numeric expressions that are entered by the user in C#

Posted by Rod Stephens at 1/20/2012 12:30 PM | Add Comment

List the languages that you can compile with code in C#

Posted by Rod Stephens at 1/17/2012 7:57 AM | View Comments (1) | Add Comment

Compile code entered at run time, execute it, and get the return result in C#

Posted by Rod Stephens at 1/16/2012 2:54 PM | View Comments (6) | Add Comment

Find and display solutions to the "find the squares" puzzle in C#

Posted by Rod Stephens at 1/11/2012 10:58 AM | Add Comment

Draw a large circle that circumscribes three smaller tangent circles in C#

Posted by Rod Stephens at 12/29/2011 8:25 AM | Add Comment

Animate a series of images in C#

Posted by Rod Stephens at 12/23/2011 9:19 AM | Add Comment

Animate moving interlocked gears in C#

Posted by Rod Stephens at 12/22/2011 11:07 AM | Add Comment

Draw gears in C#

Posted by Rod Stephens at 12/21/2011 12:09 PM | Add Comment

Puzzle: find the squares in C#

Posted by Rod Stephens at 12/19/2011 9:41 AM | Add Comment

Let a thread call a form's methods in C#

Posted by Rod Stephens at 12/16/2011 4:07 PM | Add Comment

Run Threads with different priorities in C#

Posted by Rod Stephens at 12/15/2011 9:17 AM | Add Comment

Use LINQ to order a list of words by the number of distinct letters they contain in C#

Posted by Rod Stephens at 12/14/2011 7:22 PM | Add Comment

Draw four interlocking Heighway dragons in C#

Posted by Rod Stephens at 12/13/2011 9:44 AM | Add Comment

Center a fractal Heighway dragon curve in C#

Posted by Rod Stephens at 12/12/2011 2:53 PM | Add Comment

Use XOR to swap two numbers in C#

Posted by Rod Stephens at 12/9/2011 11:36 AM | Add Comment

Draw a fractal Heighway dragon curve in C#

Posted by Rod Stephens at 12/8/2011 5:51 PM | Add Comment
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  1. Use VBA macros to add and remove hyperlinks to external PowerPoint and Word files in C#
    Friday, September 20, 2013
  2. Make a ListView control display icons next to sub-items in C#
    Thursday, September 19, 2013
  3. Make a ListView control display large and small icons in C#
    Wednesday, September 18, 2013
  4. Use WPF to make images containing text and save them in PNG files in C#
    Tuesday, September 17, 2013
  5. Get assembly information in C#
    Monday, September 16, 2013
  6. Use a StringFormat object to align text in columns drawn on a window in C#
    Friday, September 13, 2013
  7. Use tabs and a StringFormat object to align text drawn on a window in C#
    Thursday, September 12, 2013
  8. Make an application with skins in C#, Part 2 (the code)
    Wednesday, September 11, 2013
  9. Make an application with skins in C#, Part 1 (the controls)
    Monday, September 09, 2013
  10. Use VBA to randomize blocks of cells in an Excel workbook in C#
    Friday, September 06, 2013

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  1. Harshda on Open a file with the system's default application in C#
    8/30/2013
  2. Rod Stephens on Use reflection to list the properties provided by the SystemInformation class in C#
    8/28/2013
  3. Richard Moss on Use reflection to list the properties provided by the SystemInformation class in C#
    8/27/2013
  4. Nealz on Use a rubber band box to let the user select an area in a picture in C#
    8/26/2013
  5. szulak on Post questions, tips, tricks, and suggestions here
    7/31/2013
  6. Carl D on Compare floating-point values safely in C#
    7/30/2013
  7. Rod Stephens on Evaluate mathematical expressions with code in C#
    7/26/2013
  8. Carl D on Compare floating-point values safely in C#
    7/26/2013
  9. Ankit on Evaluate mathematical expressions with code in C#
    7/26/2013
  10. Rod Stephens on Make a Word document containing pictures from files with names that match a pattern in C#
    6/26/2013
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