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stuff

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The basics and examples of writing Mathematical stuff is found at Help:Formula.


"Matrixy" stuff

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eigenvalues and eigenvectors

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for example let M be some kind of 2 x 2 matrix

now let us suppose that p is a two dimensional vector there may be certain values of p such that

in two dimensions this is like saying that there are certain lines that are invariant under the transformation M. Of course the individual points may move under a transformation (unless ) but the actual line will remain unaltered.