Germany

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[–] ook_the_librarian@lemmy.world 2 points 2 years ago (1 child)

Nonmathematical, but same root, eigengrau, aka, the patterns you see if you press on your closed eyes.

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[–] gandalf_der_12te@feddit.de 1 point 2 years ago (1 child)

Aah, there's a word for it. I have been looking for it for ages.

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[–] ook_the_librarian@lemmy.world 2 points 2 years ago*

I guess I should note that I've heard people calling the patterns eigengrau, but there doesn't seem to be anything in the wikipedia about stimulating the effect with pressure.

Apparently phosphene is the general term for seeing things that aren't photons.

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[–] Malte@feddit.de 1 point 2 years ago (2 children)

I think the original mathematician that proposed this idea was named Mr. Eigen, so eigenvector doesn't actually refer to the german word "eigen".

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[–] hackebeilchen@feddit.de 5 points 2 years ago

If I remember right the term was introduced by Hilbert

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[–] tryptaminev@feddit.de 4 points 2 years ago (1 child)

this is not true. The eigenvectors direction remains unchanged by the matrix representing alinear mapping. it is therefore characteristic to the matrix, hence the term "eigen".

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[+] aaaaaaaaargh@feddit.de 1 point 2 years ago

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