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Bresenham's Line Algorithm  
 
Bresenham's algorithm is an efficient way of deciding which pixels to illuminate to trace a line on a computer screen. In this demonstration model, small squares 1 unit by 1 unit represent pixels. By changing the end point of the line you can make the pixels shrink relative to the plot window. More pixels, which amounts to higher resolution, means a better quality line.

Bob Ferguson, 2 April 2007

 
 
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