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Rotation 90 Degrees Clockwise About the Origin
Rotation matrix
(0 | 1 -1 | 0)
Transformation
(x, y)⟶(y, -x)
Matrix form of the transformation
(x y)⟶(0 | 1 -1 | 0) (x y)
Visual representation
(0 | 1 -1 | 0)
(x, y)⟶(y, -x)
(x y)⟶(0 | 1 -1 | 0) (x y)