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Geometry Expressions Example: Billiards

Saltire Software
Organization: Saltire Software
URL: http://saltire.com

In American billiards, you need to bounce your cue ball off two cushions before hitting another ball. How long is the path taken by the cue ball, A? We can create the correct path in Geometry Expressions by reflecting the target ball B in the two cushions (IJ and JG), drawing a line between the cue ball and the twice-reflected target B", then reflecting this line back. The path length is the same as the distance between the cue ball and the twice-reflected target.

Note: The downloadable file requires Geometry Expressions. You can buy the Mathematica application package from Wolfram Research or request a trial version from the developer.

*Mathematica Technology > Application Packages > Applications from Independent Developers > Geometry Expressions
Related items

*Geometry Expressions   [in Technical Notes]
*Geometry Expressions Example: Archimedes' Trammel   [in Technical Notes]


Billiards.gx (3 KB) - Unknown MIME type [for Mathematica Other]