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I have read at a lot of places that in 2D transformations rotation is a combination of scaling and simultaneous shear?
What exactly does this mean & what's the proof for this?
What exactly does this mean & what's the proof for this?
Yes, absolutely.Are you familiar with how linear tranformations are represented (one might also say "implemented") by matrices?
The statement appears to be a claim that a matrix which represents a rotation can be expressed as the product of a matrix representing scaling times a matrix representing shear.