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2D Rotation Using Matrices

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This Demonstration illustrates the concept of rotating a 2D polygon. The rotation matrix is displayed for the current angle. The default polygon is a square that you can modify.

Contributed by: Mito Are and Valeria Antohe  (March 2011)
(Collin College)
Using elements from Demonstrations by: Sergio Hannibal Mejía (Yokohama International School) and Jaime Rangel-Mondragon
Open content licensed under CC BY-NC-SA

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For an angle , multiplying a vector in the plane by the matrix rotates the vector counterclockwise about the origin.

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