Rotating Parabolas Through 3 Points

This is a cool demonstration showing what happens when I tried to find equations of all possible parabolas which passed through 3 given points. The slider for theta defines the angle by which the parabola is rotated around the origin. The algebra required to get this was pretty intense and was supported by my CAS (Computer Algebra System). A complete explanation of how the equation was derived is explained here: [url]http://casmusings.wordpress.com/2012/09/08/rotating-parabolas/‎[/url] .

 

Chris Harrow

 
Resource Type
Activity
Tags
cas  conics  parabola  quadratics  rotation 
Target Group (Age)
15 – 18
Language
English (United States)
 
 
GeoGebra version
4.0
Views
2526
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